Authors: Workenesh Ayele; Tsehai Assefa; Sileshi Lulseged; Belete Tegbaru; Hiwot Berhanu; Wegene Tamene; Zenit Ahmedin; Birzaf W Tensai; Mengistu Tafesse; Jaap Goudsmit; Ben Berkhout; William A Paxton; Michel P Debaar; Tsehaynesh Messele; Georgios Pollakis Journal: Open AIDS J Date: 2009-05-20