Cita APA

Walker, T. Y., Elam-Evans, L. D., Williams, C. L., Fredua, B., Yankey, D., Markowitz, L. E., & Stokley, S. (2019). Trends in human papillomavirus (HPV) vaccination initiation among adolescents aged 13–17 by metropolitan statistical area (MSA) status, National Immunization Survey – Teen, 2013 – 2017. Hum Vaccin Immunother.

Chicago Style Citation

Walker, Tanja Y., Laurie D. Elam-Evans, Charnetta L. Williams, Benjamin Fredua, David Yankey, Lauri E. Markowitz, i Shannon Stokley. "Trends in Human Papillomavirus (HPV) Vaccination Initiation Among Adolescents Aged 13–17 By Metropolitan Statistical Area (MSA) Status, National Immunization Survey – Teen, 2013 – 2017." Hum Vaccin Immunother 2019.

Cita MLA

Walker, Tanja Y., et al. "Trends in Human Papillomavirus (HPV) Vaccination Initiation Among Adolescents Aged 13–17 By Metropolitan Statistical Area (MSA) Status, National Immunization Survey – Teen, 2013 – 2017." Hum Vaccin Immunother 2019.