Chiswick, Carolyn, Reynolds, Rebecca M., Denison, Fiona, Drake, Amanda J., Forbes, Shareen, Newby, David E., Walker, Brian R., Quenby, Siobhan, Wray, Susan, Weeks, Andrew, Lashen, Hany, Rodriguez, Aryelly, Murray, Gordon, Whyte, Sonia and Norman, Jane E. (2015) Effect of metformin on maternal and fetal outcomes in obese pregnant women (EMPOWaR) : a randomised, double-blind, placebo-controlled trial. The Lancet Diabetes & Endocrinology, 3 (10). pp. 778-786. doi:10.1016/S2213-8587(15)00219-3 ISSN 2213-8587.