Authors: J E Hirst; J Villar; C G Victora; A T Papageorghiou; D Finkton; F C Barros; M G Gravett; F Giuliani; M Purwar; I O Frederick; R Pang; L Cheikh Ismail; A Lambert; W Stones; Y A Jaffer; D G Altman; J A Noble; E O Ohuma; S H Kennedy; Z A Bhutta Journal: BJOG Date: 2016-12-28 Impact factor: 6.531