Abstract
Chinnery, F; Dunham, KM; van der Linden, B; Westmore, M; Whitlock, E
Westmore, M (reprint author), Univ Southampton, Natl Inst Hlth Res Evaluat, Trials & Studies Coordinating Ctr, Univ Southampton Sci Pk, Southampton SO16 7NS, Hants, England.
LANCET, 2018; 391 (10123): 836