%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 https://pmc.ncbi.nlm.nih.gov/articles/PMC8049590/pdf/main.pdf %V 9