00372nas a2200145 4500000000100000008004100001260001600042653002100058100001200079245002900091856007500120300000900195490000800204022001400212 2022 d bElsevier BV10aGeneral Medicine1 aGreen A00aMwelecele Ntuli Malecela uhttps://www.thelancet.com/action/showPdf?pii=S0140-6736%2822%2900661-4 a14620 v399 a0140-6736