Analysis of 13 million individual patient records pertaining to Pap smears, colposcopies, biopsies and surgery on the uterine cervix (Belgium, 1996-2000)., Arbyn, M., Simoens Cindy, Van Oyen Herman, Foidart Jean-Michel, Goffin Frédéric, Simon Philippe, and Fabri Valérie , Prev Med, 2009 May, Volume 48, Issue 5, p.438-43, (2009)