WHO Multi-country Survey Study on Health and Responsiveness 2000-2001 T. Bedirhan Üstün, Somnath Chatterji, Maria Villanueva, Lydia Bendib Can Çelik, Ritu Sadana, Nicole Valentine, Juan Ortiz, Ajay Tandon, Joshua Salomon, Yang Cao, Xie Wan Jun, Emre Özaltin, Colin Mathers and Christopher J.L. Murray GPE Discussion Paper 37 30 November 2001