Daniel E Roth assistant professor of paediatrics and nutritional sciences, Michael Leung data analyst, Elnathan Mesfin research assistant, Huma Qamar graduate student in nutritional sciences, Jessica Watterworth graduate student in nutritional sciences, Eszter Papp research project manager et al
Roth D E, Leung M, Mesfin E, Qamar H, Watterworth J, Papp E et al.
Vitamin D supplementation during pregnancy: state of the evidence from a systematic review of randomised trials
BMJ 2017; 359 :j5237
doi:10.1136/bmj.j5237