Authors: Thomas N Williams; Sophie Uyoga; Alex Macharia; Carolyne Ndila; Charlotte F McAuley; Daniel H Opi; Salim Mwarumba; Julie Makani; Albert Komba; Moses N Ndiritu; Shahnaaz K Sharif; Kevin Marsh; James A Berkley; J Anthony G Scott Journal: Lancet Date: 2009-09-09 Impact factor: 79.321