Abstract
Bird, SM; McAuley, A
Bird, SM (reprint author), Univ Cambridge, Sch Clin Med, MRC Biostat Unit, Cambridge CB2 0SR, England.; Bird, SM (reprint author), Univ Edinburgh, Coll Med & Vet Med, Usher Inst, Edinburgh, Midlothian, Scotland.
LANCET, 2019; 393 (10169): 316