%0 Journal Article %K General Medicine %K Covid-19 %B The Lancet Global Health %D 2021 %G eng %I Elsevier BV %N 5 %P e711-e720 %R 10.1016/s2214-109x(20)30542-8 %T How COVID-19 has fundamentally changed clinical research in global health %U 8https://www.thelancet.com/action/showPdf?pii=S2214-109X%2820%2930542-8 %V 9