Kizito Shirima , Oscar Mukasa , Joanna Armstrong Schellenberg , Fatuma Manzi , Davis John , Adiel Mushi , Mwifadhi Mrisho , Marcel Tanner , Hassan Mshinda and David Schellenberg
Emerging Themes in Epidemiology 2007, 4:5doi:10.1186/1742-7622-4-5