Stallard, Nigel, Hamborg, Thomas, Parsons, Nicholas R. and Friede, Tim. (2014) Adaptive designs for confirmatory clinical trials with subgroup selection. Journal of Biopharmaceutical Statistics, Volume 24 (Number 1). pp. 168-187. ISSN 1054-3406

Marwaha, Steven, Parsons, Nick and Broome, Matthew R.. (2013) Mood instability, mental illness and suicidal ideas : results from a household survey. Social Psychiatry and Psychiatric Epidemiology, Volume 48 (Number 9). pp. 1431-1437. ISSN 0933-7954

Amarasekera, Hiran W., Campbell, P. C., Parsons, Nicholas R., Achten, Juul, Masters, James P. M., Griffin, Damian R. and Costa, Matthew L.. (2013) The effect of surgical approach on the histology of the femoral head following resurfacing of the hip : analysis of retrieval specimens. Bone and Joint Research, Volume 2 (Number 9). pp. 200-205. ISSN 2046-3758

Hunter, Paul J., Calvo-Bado, Leo A., Parsons, Nick, Pettitt, Tim R., Petch, Geoff M., Shaw, Eve, Morgan, J. Alun W. and Whipps, John M.. (2013) Variation in microbial communities colonizing horticultural slow sand filter beds : implications for filter function. Irrigation Science, Volume 31 (Number 4). pp. 631-642. ISSN 0342-7188

Griffin, Xavier L., Achten, Juul, Parsons, Nicholas R. and Costa, Matthew L.. (2013) Platelet-rich therapy in the treatment of patients with hip fractures: a single centre, parallel group, participant-blinded, randomised controlled trial. BMJ Open, Volume 3 (Number 6). Article number e002583. ISSN 2044-6055

Feng, Qing Yi, Griffiths, Frances, Parsons, Nick and Gunn, Jane. (2013) An exploratory statistical approach to depression pattern identification. Physica A: Statistical Mechanics and its Applications, Volume 392 (Number 4). pp. 889-901. ISSN 0378-4371

Friede, Tim, Parsons, Nicholas R. and Stallard, Nigel. (2013) Correction : A conditional error function approach for subgroup selection in adaptive clinical trials. Statistics in Medicine, Volume 32 (Number 14). pp. 2513-2514. ISSN 0277-6715

Parsons, Nick. (2013) Proportional-odds models for repeated composite and long ordinal outcome scales. Statistics in Medicine, Volume 32 (Number 18). pp. 3181-3191. ISSN 0277-6715

Amarasekera, Hiran W., Roberts, Penny, Costa, Matthew L., Parsons, Nicholas R., Achten, Juul, Griffin, Damian R. and Williams, N. R.. (2013) Scintigraphic assessment of bone status at one year following hip resurfacing : comparison of two surgical approaches using SPECT-CT scan. Bone & Joint Research, Volume 1 (Number 5). pp. 86-92. ISSN 2046-3758

Gilbert, E. (Eleanor), Marwaha, Steven, Milton, Alyssa, Johnson, Sonia, 1964-, Morant, Nicola, Parsons, Nicholas R., Fisher, A. (Adrian), Singh, Swaran P. and Cunliffe, Di. (2013) Social firms as a means of vocational recovery for people with mental illness : a UK survey. BMC Health Services Research, Volume 13 (Number 1). Article number 270. ISSN 1472-6963

Gosling, Paul, Parsons, Nicholas R. and Bending, Gary D.. (2013) What are the primary factors controlling the light fraction and particulate soil organic matter content of agricultural soils? Biology and Fertility of Soils . ISSN 0178-2762 (In Press)

Kunz, Cornelia, Friede, Tim, Parsons, Nicholas R., Todd, Susan and Stallard, Nigel (2013) A comparison of methods for treatment selection in seamless phase II/III clinical trials incorporating information on short-term endpoints. Journal of Biopharmaceutical Statistics . ISSN 1054-3406 (In Press)

Sprowson, Andrew P., Jensen, Cyrus D., Gupta, Sanjay (Researcher in medicine), Parsons, Nicholas R., Murty, Aradhyula N., Jones, Simon M. G., Inman, Dominic and Reed, Mike R.. (2013) The effect of high dose antibiotic impregnated cement on rate of surgical site infection after hip hemiarthroplasty for fractured neck of femur : a protocol for a double-blind quasi randomised controlled trial. BMC Musculoskeletal Disorders, Volume 14 (Number 1). Article number 356. ISSN 1471-2474

Marwaha, Steven, Parsons, Nicholas R., Flanagan, Sarah and Broome, Matthew R.. (2013) The prevalence and clinical associations of mood instability in adults living in England : results from the Adult Psychiatric Morbidity Survey 2007. Psychiatry Research, Vol.205 (No.3). pp. 262-268. ISSN 0165-1781

Edlin, Richard P., Tubeuf, Sandy, Achten, Juul, Parsons, Nicholas R. and Costa, Matthew L.. (2012) Cost-effectiveness of total hip arthroplasty versus resurfacing arthroplasty : economic evaluation alongside a clinical trial. BMJ Open, Volume 2 (Number 5). Article:e001162. ISSN 2044-6055

Costa, M. L., Achten, J., Parsons, Nicholas R., Edlin, R. P., Foguet, P., Prakash, U. and Griffin, D. R.. (2012) Total hip arthroplasty versus resurfacing arthroplasty in the treatment of patients with arthritis of the hip joint : single centre, parallel group, assessor blinded, randomised controlled trial. BMJ, Vol.344 (No.1). e2147-e2147. ISSN 0959-535X

Parsons, Nicholas R., Friede, Tim, Todd, S., Marquez, Elsa Valdes, Chataway, J., Nicholas, Richard and Stallard, Nigel. (2012) An R package for implementing simulations for seamless phase II/III clinical trials using early outcomes for treatment selection. Computational Statistics & Data Analysis, Vol.56 (No.5). pp. 1150-1160. ISSN 0167-9473

Mauffrey, C., McGuinness, K., Parsons, Nicholas R., Achten, J. and Costa, M. L.. (2012) A randomised pilot trial of "locking plate" fixation versus intramedullary nailing for extra-articular fractures of the distal tibia. Journal of Bone and Joint Surgery - British Volume, Volume 94-B (Number 5). pp. 704-708. ISSN 0301-620X

Kearney, Rebecca S., Achten, Juul, Lamb, S. E. (Sallie E.), Parsons, Nicholas R. and Costa, Matthew L.. (2012) The Achilles tendon total rupture score : a study of responsiveness, internal consistency and convergent validity on patients with acute Achilles tendon ruptures. Health and Quality of Life Outcomes, Vol.10 (No.1). p. 24. ISSN 1477-7525

Costa, M. L., Achten, Juul, Parsons, Nicholas R., Edlin, Richard P., Foguet, P., Prakash, Udai and Griffin, Damian R.. (2012) Authors' reply to Oussedik and colleagues. BMJ, Volume 344 . e3672. ISSN 0959-535X

Griffin, Xavier L., Smith, Nick, Parsons, Nicholas R. and Costa, Matthew L.. (2012) Ultrasound and shockwave therapy for acute fractures in adults (protocol). Cochrane Database of Systematic Reviews (No.2). CD008579. ISSN 1469-493X

Bateman, James, Allen, Maggie E., Kidd , Jane, Parsons, Nicholas R. and Davies, David. (2012) Virtual patients design and its effect on clinical reasoning and student experience : a protocol for a randomised factorial multi-centre study. BMC Medical Education, Vol.12 (No.1). p. 62. ISSN 1472-6920

Griffin, Xavier L., Achten, Juul, Parsons, Nicholas R., Boardman, Felicity K., Griffiths, Frances and Costa, Matthew L.. (2012) The Warwick Hip Trauma Evaluation – an abridged protocol for the WHiTE Study : a multiple embedded randomised controlled trial cohort study. Bone & Joint Research, Volume 1 (Number 11). pp. 310-314. ISSN 2046-3758

Friede, Tim, Parsons, Nicholas R. and Stallard, Nigel. (2012) A conditional error function approach for subgroup selection in adaptive clinical trials. Statistics in Medicine, Vol.31 (No.30). pp. 4309-4320. ISSN 0277-6715

. (2012) The development and validation of a self-administered quality-ofl life outcome measure for young, active patients with symptomatic hip disease : the International Hip Outcome Tool (iHOT-33). Arthroscopy: The Journal of Arthroscopic & Related Surgery, Vol.28 (No.5). 595-610.e1. ISSN 0749-8063

Parsons, Nicholas R., Price, Charlotte L., Hiskens, Richard, Achten, Juul and Costa, Matthew L.. (2012) An evaluation of the quality of statistical design and analysis of published medical research : results from a systematic survey of general orthopaedic journals. BMC Medical Research Methodology, Vol.12 (No.1). Article no. 60. ISSN 1471-2288

Griffin, Damian R., Parsons, Nicholas R., Mohtadi, Nicholas G. H. and Safran, Marc R.. (2012) A short version of the International Hip Outcome Tool (iHOT-12) for use in routine clinical practice. Arthroscopy: The Journal of Arthroscopic & Related Surgery, Vol.28 (No.5). pp. 611-618. ISSN 0749-8063

Parsons, Nick, Friede, Tim, Todd, Susan and Stallard, Nigel (2011) Software tools for implementing simulation studies in adaptive seamless designs : introducing R package ASD. Trials, Vol.12 (Suppl.1). A8. ISSN 1745-6215

Parsons, Nicholas R., Kulikov, Yuri, Girling, Alan J. and Griffin, Damian R.. (2011) A statistical framework for quantifying clinical equipoise for individual cases during randomized controlled surgical trials. Trials, Vol.12 (No.1). p. 258. ISSN 1745-6215

Kearney, Rebecca S., Lamb, S. E. (Sallie E.), Achten, Juul, Parsons, Nicholas R. and Costa, M. L.. (2011) In-shoe plantar pressures within ankle-foot orthoses : implications for the management of achilles tendon ruptures. The American Journal of Sports Medicine, Vol.39 (No.12). pp. 2679-2685. ISSN 0363-5465

Odumenya, M. (Michelle), McGuinness, Katie, Achten, Juul, Parsons, Nicholas R., Spalding, Tim and Costa, Matthew L.. (2011) The Warwick patellofemoral arthroplasty trial : a randomised clinical trial of total knee arthroplasty versus patellofemoral arthroplasty in patients with severe arthritis of the patellofemoral joint. BMC Musculoskeletal Disorders, Vol.12 (No.1). p. 265. ISSN 1471-2474

Costa, Matthew L., Griffin, X. L., Pendleton, N., Pearson, Mike, FRCP and Parsons, Nicholas R.. (2011) Does cementing the femoral component increase the risk of peri-operative mortality for patients having replacement surgery for a fracture of the neck of femur? : data from the National Hip Fracture Database. Journal of Bone and Joint Surgery - British Volume, Vol.93-B (No.10). pp. 1405-1410. ISSN 0301-620X

Parsons, Nicholas R., Odumenya, M. (Michelle), Edwards, Antoinette, Lecky, Fiona and Pattison, Giles. (2011) Modelling the effects of the weather on admissions to UK trauma units : a cross-sectional study. Emergency Medicine Journal, Vol.28 (No.10). pp. 851-855. ISSN 1472-0205

Costa, Matthew L., Achten, Juul, Parsons, Nicholas R., Rangan, Amar, Edlin, Richard P., Brown, Jaclyn and Lamb, S. E. (Sallie E.). (2011) UK DRAFFT : a randomised controlled trial of percutaneous fixation with kirschner wires versus volar locking-plate fixation in the treatment of adult patients with a dorsally displaced fracture of the distal radius. BMC Musculoskeletal Disorders, Vol.12 (No.1). p. 201. ISSN 1471-2474

McArthur, John R., Costa, Matthew L., Griffin, Damian R., Krikler, Steven J., Parsons, Nicholas R. and Foguet, Pedro R.. (2011) Groin pain following hip resurfacing: a case-control study. Hip International, Vol.21 (No.5). pp. 602-609. ISSN 1120-7000

Parsons, Nicholas R., Hiskens, Richard, Price, Charlotte L., Achten, Juul and Costa, Matthew L.. (2011) A systematic survey of the quality of research reporting in general orthopaedic journals. Journal of Bone and Joint Surgery - British Volume, Vol.93-B (No.9). pp. 1154-1159. ISSN 0301-620X

Friede, Tim, Parsons, Nicholas R., Stallard, Nigel, Todd, S. (Susan), Valdes Marquez, E., Chataway, Jeremy and Nicholas, R. (Richard). (2011) Designing a seamless phase II/III clinical trial using early outcomes for treatment selection : an application in multiple sclerosis. Statistics in Medicine, Vol.30 (No.13). pp. 1528-1540. ISSN 02776715

Kearney, Rebecca S., Achten, Juul, Parsons, Nicholas R. and Costa, Matthew L.. (2011) The comprehensive cohort model in a pilot trial in orthopaedic trauma. BMC Medical Research Methodology, Vol.11 (No.39). ISSN 1471-2288

Amarasekera, Hiran W., Costa, Matthew L., Parsons, Nicholas R., Achten, Juul, Griffin, Damian R., Manktelow, Sophie and Williams, Nigel R.. (2011) SPECT/CT bone imaging after hip resurfacing arthroplasty. Nuclear Medicine Communications, Volume 32 (Number 4). pp. 289-297. ISSN 0143-3636

Chataway, J., Nicholas, R., Todd, S., Miller, D. H., Parsons, Nicholas R., Valdes-Marquez, E., Stallard, Nigel and Friede, Tim. (2011) A novel adaptive design strategy increases the efficiency of clinical trials in secondary progressive multiple sclerosis. Multiple Sclerosis Journal, Vol.17 (No.1). pp. 81-88. ISSN 1352-4585

Griffin, Xavier L., Costa, Matthew L., Parsons, Nicholas R. and Smith, Nick. (2011) Electromagnetic field stimulation for treating delayed union or non-union of long bone fractures in adults (Review). Cochrane Database of Systematic Reviews (No.4). Article CD008471. ISSN 1469-493X

Deans, Victoria M., Ho, Ki Wai K., Prakash, Udai, Parsons, Nick, Griffin, Damian R. and Foguet, Pedro. (2011) Femoral neck narrowing following hip resurfacing using posterior and Ganz approaches at two years. Hip International, Vol.21 (No.5). pp. 596-601. ISSN 1724-6067

Griffin, Xavier L., Wallace, David, Parsons, Nicholas R. and Costa, Matthew L.. (2011) Platelet rich therapies for long bone healing in adults. Cochrane Database of Systematic Reviews . ISSN 1469-493X

deSouza, R. M., Parsons, Nicholas R., Oni, T., Dalton, P., Costa, Matthew L. and Krikler, S.. (2010) Metal ion levels following resurfacing arthroplasty of the hip : Serial results over a ten-year period. Journal of Bone and Joint Surgery - British Volume, Vol.92-B (No.12). pp. 1642-1647. ISSN 0301-620X

Friede, Tim, Nicholas, Richard, Stallard, Nigel, Todd, Susan, Parsons, Nicholas R., Valdes-Marquez, Elsa and Chataway, J.. (2010) Refinement of the clinical scenario evaluation framework for assessment of competing development strategies with an application to multiple sclerosis. Drug Information Journal, Vol.44 (No.6). pp. 713-718. ISSN 0092-8615

Ho, Kevin K. W., Beazley, James, Parsons, Nicholas R., Costa, Matthew L. and Foguet, P.. (2010) Narrowing of the femoral neck after resurfacing arthroplasty of the hip : a comparison of cemented and uncemented femoral components. Hip international : the journal of clinical and experimental research on hip pathology and therapy, Vol.20 (No.4). pp. 542-546. ISSN 1724-6067

Parsons, Nicholas R., De Souza, Ruth-Mary, Oni, T., Achten, Juul, Krikler, Stephen J. and Costa, Matthew L.. (2010) A comparison of Harris and Oxford hip scores for assessing outcome after resurfacing arthroplasty of the hip : can the patient tell us everything we need to know. Hip international : the journal of clinical and experimental research on hip pathology and therapy, Vol.20 (No.4). pp. 453-459. ISSN 1724-6067

Karthikeyan, S., Kwong, H. T., Upadhyay, P. K., Parsons, Nicholas R., Drew, S. J. and Griffin, Damian R.. (2010) A double-blind randomised controlled study comparing subacromial injection of tenoxicam or methylprednisolone in patients with subacromial impingement. Journal of Bone and Joint Surgery - British Volume, Vol.92-B (No.1). pp. 77-82. ISSN 0301-620X

Odumenya, M. (Michelle), Costa, Matthew L., Parsons, Nicholas R., Achten, Juul, Dhillon, M. and Krikler, S. J.. (2010) The Avon patellofemoral joint replacement : five year results from an independent centre. Journal of Bone and Joint Surgery - British Volume, Vol.92-B (No.1). pp. 56-60. ISSN 0301-620X

Kilkenny, Carol, Parsons, Nicholas R., Kadyszewski, Ed, Festing, Michael F. W., Cuthill, Innes C., Fry, Derek, Hutton, Jane L. and Altman, Douglas G.. (2009) Survey of the quality of experimental design, statistical analysis and reporting of research using animals. PL o S One, Vol.4 (No.11). Article no. e7824. ISSN 1932-6203

Chataway, J., Nicholas, R., Stallard, Nigel, Todd, S., Parsons, Nicholas R., Valdes-Marquez, E. and Friede, Tim (2009) Developing a new trial design in secondary progressive multiple sclerosis: a seamless adaptive approach. In: ABN Joint Annual Meeting with the Spanish Society of Neurology, Liverpool, England, June 22-26, 2009. Published in: Journal of Neurology Neurosurgery and Psychiatry , Vol.80 (No.11). Article no. e3, p. 10.

Moore, Vicky C., Parsons, Nicholas R., Jaakkola, Maritta S., Burge, Cedd B.S.G., Pantin, Charles F., Robertson, Alastair S. and Burge, P. Sherwood. (2009) Serial lung function variability using four portable logging meters. Journal of Asthma, Vol.46 (No.9). pp. 961-966. ISSN 0277-0903

Chataway, J., Nicholas, R., Todd, S., Stallard, Nigel, Valdes-Marquez, E., Parsons, Nicholas R. and Friede, Tim (2009) Adaptive seamless trial designs in neurology: a case study in secondary progressive multiple sclerosis. In: 19th World Congress of Neurology, Bangkok, Thailand, October 24-30, 2009. Published in: Journal of the Neurological Sciences, Vol.285 (Suppl. 1). S113-S114.

Chataway, J., Nicholas, R., Todd, S., Stallard, N., Valdes-Marquez, E., Parsons, Nicholas R. and Friede, T.. (2009) FP36-WE-01 Adaptive seamless trial designs in neurology : a case study in secondary progressive multiple sclerosis. Journal of the Neurological Sciences, Vol.285 (Supp.1). S113-S114. ISSN 0022-510X

Killampalli, Vijay V., Hayes, Andrew, Parsons, Nicholas R., Costa, Matthew L. and Prakash, Udai. (2009) Hip resurfacing using the Trochanteric Flip Osteotomy. Hip International, Vol.19 (No.2). pp. 131-135. ISSN 1120-7000

Arya, Roopen, Paneesha, Shankaranarayana, McManus, Aidan, Parsons, Nicholas R., Scriven, Nicholas, Farren, Timothy, Nokes, Tim, Smith, H. (Harry), O'Shaughnessy, Denise and Rose, Peter (2009) More on thromboprophylaxis : quantifying risk for venous thromboembolism. Thrombosis and Haemostasis, Vol.101 (No.4). pp. 791-794. ISSN 0340-6245

Parsons, Nicholas R., Costa, Matthew L., Achten, Juul and Stallard, Nigel. (2009) Repeated measures proportional odds logistic regression analysis of ordinal score data in the statistical software package R. Computational Statistics & Data Analysis, Vol.53 (No.3). pp. 632-641. ISSN 0167-9473

Friede, Tim, Parsons, Nicholas R., Stallard, Nigel, Todd, S., Valdes Marquez, E., Chataway, J. and Nicholas, R. (2009) Adaptive clinical trial design for treatment selection and evaluation in multiple sclerosis (MS-Adaptive). UNSPECIFIED..

Chataway, J., Nicholas, R., Todd, S., Stallard, Nigel, Valdes-Marquez, E., Parsons, Nicholas R. and Friede, Tim. (2009) Adaptive seamless trial designs in neurology : a case study in secondary progressive multiple sclerosis [Abstract]. Journal of the Neurological Sciences, Vol.285 (Suppl.1). S113-S114. ISSN 0022-510X

Fuller, D., Parsons, Nicholas R. and Pratt, T. (2009) Alstroemeria : towards understanding and optimising productivity, quality and scheduling of Alstroemeria under UK commercial production conditions through monitoring and analysing data from grower holdings. UNSPECIFIED..

Parsons, Nicholas R., Gilmour, S. G. and Edmondson, R. N.. (2009) Analysis of robust design experiments with time-dependent ordinal response characteristics : a quality improvement study from the horticulture industry. Journal of Applied Physics, Vol.36 (No.9). pp. 1037-1054. ISSN 0266-4763

Parsons, Nicholas R., Smith, J. Q., 1953-, Thönnes, Elke, Wang, Li and Wilson, Roland, 1949-. (2008) Rotationally invariant statistics for examining the evidence from the pores in fingerprints. Law, Probability and Risk, Vol.7 (No.1). pp. 1-14. ISSN 1470-8396

Arya, Roopen, Paneesha, Shankaranarayana, McManus, Aidan, Parsons, Nicholas R., Scriven, Nicholas, Farren, Tim, Nokes, Tim, O'Shaughnessy, Denise and Rose, Peter (2007) Derivation and validation of a prediction tool for venous thromboembolism : a VERITY registry study. In: 49th Annual Meeting of the American Society of Hematology, Atlanta, USA, 08-11 Dec 2007. Published in: Blood, Vol.110 (No.11 Part 1). 214A-214A.

Paneesha, S., Zhang, W., Parsons, Nicholas R., Kesteven, P., Marr, H., Borg, A. and Rose, P. (2007) Which patients with venous thrombosis do not require screening for malignancy? A predictive model to identify patients with VTE at minimal risk of malignancy. In: 47th Annual Scientific Meeting of the British Society for Haematology, Bournemouth, England, April 30-May 02, 2007. Published in: British Journal of Haematology, Vol.137 (Supplement 1). p. 54.

Paneesha, S., Zhang, W., Parsons, Nicholas R., Kesteven, P., Marr, H., Borg, A. and Rose, P. (2007) Do all patients with venous thrombosis require screening for malignancy? A predictive model to identify patients with VTE at minimal risk of malignancy. In: 4th International Conference on Thrombosis and Hemostasis Issues in Cancer, Bergamo, ITALY, OCT 26-28, 2007. Published in: THROMBOSIS RESEARCH, 120 (Suppl. 2). S159-S159.

Song, Yu, Wilson, Roland, Edmondson, Rodney and Parsons, Nicholas R. (2007) Surface modelling of plants from stereo images. In: 6th International Conference on 3-D Digital Imaging and Modeling, Montreal, CANADA, AUG 21-23, 2007. Published in: 3DIM 2007: Sixth International Conference on 3-D Digital Imaging and Modeling, Proceedings pp. 312-319.

Paneesha, Shankaranarayana, Zhang, W., Parsons, Nicholas R., French, K., Cheyne, E., Bacchu, S., Borg, Anton and Rose, P. (2006) A predictive model to identify patients with venous thromboembolism (VTE) at minimal risk of malignancy. In: 48th Annual Meeting of the American-Society-of-Hematology, Orlando, FL, DEC 09-12, 2006. Published in: BLOOD, 108 (11 Part 1). 433A-433A.

Hunter, Paul J., Petch, Geoff M., Calvo-Bado, Leo A., Pettitt, Tim R., Parsons, Nicholas R., Morgan, J. Alun W. and Whipps, John M.. (2006) Differences in microbial activity and microbial populations of peat associated with suppression of damping-off disease caused by Pythium sylvaticum. APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 72 (10). pp. 6452-6460. ISSN 0099-2240

Calvo-Bado, Leo A., Petch, G., Parsons, Nicholas R., Morgan, J. A. W., Pettitt, T. R. and Whipps, J. M.. (2006) Microbial community responses associated with the development of oomycete plant pathogens on tomato roots in soilless growing systems. Journal of Applied Microbiology, Vol.100 (No.6). pp. 1194-1207. ISSN 1364-5072

Parsons, Nicholas R., Edmondson, R. N. and Gilmour, S. G.. (2006) A generalized estimating equation method for fitting autocorrelated ordinal score data with an application in horticultural research. JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES C-APPLIED STATISTICS, 55 (Part 4). pp. 507-524. ISSN 0035-9254

Parsons, Nicholas J., Ashton, Peter R., Constantinidou, Chrystala, Cole, Jeffrey A. and Smith, Harry. (1993) Identification by mass spectrometry of CMP-NANA in diffusible material released from high Mr blood cell fractions that confers serum resistance on gonococci. Microbial Pathogenesis, Volume 14 (Number 4). pp. 329-335. ISSN 0882-4010