Impact of introduction of the 9-valent human papillomavirus vaccine on vaccination coverage of youth in North Carolina

Vaccine
Volume 36, Issue 10  Pages 1243-1322 (28 February 2018)
https://www.sciencedirect.com/journal/vaccine/vol/36/issue/10

Impact of introduction of the 9-valent human papillomavirus vaccine on vaccination coverage of youth in North Carolina
Original research article
Pages 1304-1309
Justin G. Trogdon, Paul Shafer, Brianna Lindsay, Tamera Coyne-Beasley