Authors: M S Cohen; I F Hoffman; R A Royce; P Kazembe; J R Dyer; C C Daly; D Zimba; P L Vernazza; M Maida; S A Fiscus; J J Eron Journal: Lancet Date: 1997-06-28 Impact factor: 79.321
Authors: D W Cameron; J N Simonsen; L J D'Costa; A R Ronald; G M Maitha; M N Gakinya; M Cheang; J O Ndinya-Achola; P Piot; R C Brunham Journal: Lancet Date: 1989-08-19 Impact factor: 79.321
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