00559nas a2200157   4500000000100000008004100001260001600042653002100058100001900079245006000098856007500158300001000233490000800243520013600251022001400387       2022                            d  bElsevier BV10aGeneral Medicine1 aSamarasekera U00aMédecins Sans Frontières: 50 years of bearing witness  uhttps://www.thelancet.com/action/showPdf?pii=S0140-6736%2821%2902843-9  a12-150 v3993 a<p>MSF was founded half a century ago. It has transformed humanitarianism and global health. But it is facing new challenges.</p>
  a0140-6736