00439nas a2200157   4500000000100000008004100001260001600042653002100058100001100079700001400090245006600104856007500170300001600245490000600261022001400267       2021                            d  bElsevier BV10aGeneral Medicine1 aChu KM1 aWeiser TG00aReal-world implementation challenges in low-resource settings  uhttps://www.thelancet.com/action/showPdf?pii=S2214-109X%2821%2900371-5  ae1341-e13420 v9  a2214-109X