[1] Univ Antwerp, Dept Med Oncol, B-2610 Antwerp, Belgium
[2] Univ Antwerp, Dept Gynecol & Gynecol Oncol, B-2020 Antwerp, Belgium
[3] Univ Antwerp, Dept Epidemiol & Community Med, B-2020 Antwerp, Belgium
[4] Univ Antwerp, Ctr Gen Practice, B-2020 Antwerp, Belgium
[5] Univ Antwerp, Dept Pathol, B-2020 Antwerp, Belgium