RT Journal Article SR Electronic T1 Including males in Canadian human papillomavirus vaccination programs: a policy analysis JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 881 OP 886 DO 10.1503/cmaj.150451 VO 188 IS 12 A1 Shapiro, Gilla K. A1 Perez, Samara A1 Rosberger, Zeev YR 2016 UL http://www.cmaj.ca/content/188/12/881.abstract