title: Cochrane Column.
authors.forename: Charles S
authors.initials: CS
authors.lastname: Wiysonge
authors.forename: Charles S
authors.initials: CS
authors.lastname: Wiysonge
authors.affiliation: Provincial Department of Health, KwaZulu-Natal, South Africa.
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Lutge
authors.affiliation: Provincial Department of Health, KwaZulu-Natal, South Africa.
authors.forename: Jamlick
authors.initials: J
authors.lastname: Karumbi
authors.affiliation: Provincial Department of Health, KwaZulu-Natal, South Africa.
authors.forename: Muki S
authors.initials: MS
authors.lastname: Shey
authors.forename: James
authors.initials: J
authors.lastname: Mpunga
authors.forename: Sandy
authors.initials: S
authors.lastname: Oliver