%0 Journal Article %T Human papillomavirus vaccine %A Singhal Priyanka %A Marfatia Y %J Indian Journal of Sexually Transmitted Diseases %D 2009 %I Medknow Publications %U http://www.ijstd.org/article.asp?issn=0253-7184;year=2009;volume=30;issue=1;spage=51;epage=52;aulast=Singhal