Factors influencing HPV vaccine delivery by healthcare professionals at public health posts in São Paulo, Brazil - Figueroa‐Downing, Daniella; Baggio, Maria Luiza; Baker, Misha L.; Chiang, Ellen Dias De Oliveira; Villa, Luisa L.; Eluf Neto, Jose; Evans, Dabney P.; Bednarczyk, Robert A. (International Journal of Gynecology & Obstetrics, 2017)