Journal Article
                        
                        Ustun, Bedirhan T, Somnath  Chatterji, Maria  Villanueva, Lydia  Bendib, Can  Celik, Ritu  Sadana, Nicole  Valentine, Juan  Ortiz, Ajay  Tandon, Joshua  Salomon, and   others.  
"WHO Multi-country Survey Study on Health and Responsiveness 2000-2001." GPE Discussion Paper  , no. 37 (2001).