Authors: Rai Asghar; Salem Banajeh; Josefina Egas; Patricia Hibberd; Imran Iqbal; Mary Katep-Bwalya; Zafarullah Kundi; Paul Law; William MacLeod; Irene Maulen-Radovan; Greta Mino; Samir Saha; Fernando Sempertegui; Jonathon Simon; Mathuram Santosham; Sunit Singhi; Donald M Thea; Shamim Qazi Journal: BMJ Date: 2008-01-08