RT Journal Article SR Electronic T1 NEW COCHRANE REVIEW ASSESSES DIFFERENT HPV VACCINES AND VACCINE SCHEDULES IN ADOLESCENT GIRLS AND BOYS JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 1305 OP 1306 VO 40 IS 12 YR 2019 UL http://smj.org.sa/content/40/12/1305.abstract AB