Authors: P Lepage; P Van de Perre; M Caraël; F Nsengumuremyi; J Nkurunziza; J P Butzler; S Sprecher Journal: Lancet Date: 1987-08-15 Impact factor: 79.321
Authors: D R Hicks; L S Martin; J P Getchell; J L Heath; D P Francis; J S McDougal; J W Curran; B Voeller Journal: Lancet Date: 1985 Dec 21-28 Impact factor: 79.321