Authors: Jean B Nachega; Olalekan A Uthman; Yuh-Shan Ho; Melanie Lo; Chuka Anude; Patrick Kayembe; Fred Wabwire-Mangen; Exnevia Gomo; Papa Salif Sow; Ude Obike; Theophile Kusiaku; Edward J Mills; Bongani M Mayosi; Carel Ijsselmuiden Journal: Int J Epidemiol Date: 2012-12 Impact factor: 7.196