Woodbine, Kerry A., Schukken, Ynte H., Green, Laura E., Ramírez Villaescusa, Ana, Mason, Sam (Sam A.), Moore, Stephen J., Bilbao, Christine, Swann, Natalie and Medley, Graham (2009) Seroprevalence and epidemiological characteristics of Mycobacterium avium subsp paratuberculosis on 114 cattle farms in south west England. Preventive Veterinary Medicine, Vol.89 (No.1-2). pp. 102-109. doi:10.1016/j.prevetmed.2009.02.005 ISSN 0167-5877.