Gilca, V., Sauvageau, C., Panicker, G., De Serres, G., Ouakki, M., & Unger, E. R. (2018). Antibody persistence after a single dose of quadrivalent HPV vaccine and the effect of a dose of nonavalent vaccine given 3-8 years later – an exploratory study. Hum Vaccin Immunother.

Gilca, Vladimir, Chantal Sauvageau, Gitika Panicker, Gaston De Serres, Manale Ouakki, and Elizabeth R. Unger. "Antibody Persistence After a Single Dose of Quadrivalent HPV Vaccine and the Effect of a Dose of Nonavalent Vaccine Given 3-8 Years Later – an Exploratory Study." Hum Vaccin Immunother 2018.

Gilca, Vladimir, et al. "Antibody Persistence After a Single Dose of Quadrivalent HPV Vaccine and the Effect of a Dose of Nonavalent Vaccine Given 3-8 Years Later – an Exploratory Study." Hum Vaccin Immunother 2018.