%0 Journal Article %K General Medicine %B The Lancet %D 2022 %G eng %I Elsevier BV %N 10319 %P 12-15 %R 10.1016/s0140-6736(21)02843-9 %T Médecins Sans Frontières: 50 years of bearing witness %U https://www.thelancet.com/action/showPdf?pii=S0140-6736%2821%2902843-9 %V 399