Authors: Nora Mutalima; Elizabeth Molyneux; Harold Jaffe; Steve Kamiza; Eric Borgstein; Nyengo Mkandawire; George Liomba; Mkume Batumba; Dimitrios Lagos; Fiona Gratrix; Chris Boshoff; Delphine Casabonne; Lucy M Carpenter; Robert Newton Journal: PLoS One Date: 2008-06-18 Impact factor: 3.240