Authors: Kojo Yeboah-Antwi; Portipher Pilingana; William B Macleod; Katherine Semrau; Kazungu Siazeele; Penelope Kalesha; Busiku Hamainza; Phil Seidenberg; Arthur Mazimba; Lora Sabin; Karen Kamholz; Donald M Thea; Davidson H Hamer Journal: PLoS Med Date: 2010-09-21 Impact factor: 11.069