Journal Article
                        
                        Sankaranarayanan, Rengaswamy, Neerja  Bhatla, Patti E Gravitt, Partha  Basu, Pulikattil O Esmy, K.S.  Ashrafunnessa, Yasantha  Ariyaratne, Aarti  Shah, and Bhagwan M Nene.  
"Human papillomavirus infection and cervical cancer prevention in India, Bangladesh, Sri Lanka and Nepal." (2008) Vaccine.