Authors: M E St Louis; M Kamenga; C Brown; A M Nelson; T Manzila; V Batter; F Behets; U Kabagabo; R W Ryder; M Oxtoby Journal: JAMA Date: 1993-06-09 Impact factor: 56.272
Authors: P Van de Perre; A Simonon; P Msellati; D G Hitimana; D Vaira; A Bazubagira; C Van Goethem; A M Stevens; E Karita; D Sondag-Thull Journal: N Engl J Med Date: 1991-08-29 Impact factor: 91.245