Xi, L. F., Koutsky, L. A., Castle, P. E., Edelstein, Z. R., Hulbert, A., Schiffman, M., & Kiviat, N. B. (2010). Human Papillomavirus Type 16 Variants in Paired Enrollment and Follow-up Cervical Samples: Implications for a Proper Understanding of Type-Specific Persistent Infections. The University of Chicago Press.

Xi, Long Fu, Laura A. Koutsky, Philip E. Castle, Zoe R. Edelstein, Ayaka Hulbert, Mark Schiffman, and Nancy B. Kiviat. Human Papillomavirus Type 16 Variants in Paired Enrollment and Follow-up Cervical Samples: Implications for a Proper Understanding of Type-Specific Persistent Infections. The University of Chicago Press, 2010.

Xi, Long Fu, et al. Human Papillomavirus Type 16 Variants in Paired Enrollment and Follow-up Cervical Samples: Implications for a Proper Understanding of Type-Specific Persistent Infections. The University of Chicago Press, 2010.