Koshiol, Jill, Poole, Charles, Chu, Haitao, Pimenta, Jeanne M., Lindsay, Lisa, Jenkins, David, Smith, Jennifer S. (2008). "The Authors Respond to "HPV Persistence and Cervical Cancer Screening"". American Journal of Epidemiology, Vol.168, No.2, July 15, 2008: p.145-148

Warning: These citations may not always be 100% accurate.