Authors: Stefan Berg; Rebuma Firdessa; Meseret Habtamu; Endalamaw Gadisa; Araya Mengistu; Lawrence Yamuah; Gobena Ameni; Martin Vordermeier; Brian D Robertson; Noel H Smith; Howard Engers; Douglas Young; R Glyn Hewinson; Abraham Aseffa; Stephen V Gordon Journal: PLoS One Date: 2009-04-07 Impact factor: 3.240