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Authors: E Gaitan; H Merino; G Rodriguez; P Medina; J D Meyer; T A DeRouen; R MacLennan Journal: Bull World Health Organ Date: 1978 Impact factor: 9.408
Authors: Anthony U Mbah; Emmanuel C Ejim; Obinna D Onodugo; Francis O Ezugwu; Matthew I Eze; Peter O Nkwo; Winston C Ugbajah Journal: BMC Res Notes Date: 2011-06-18