[1] German Canc Res Ctr, Div Toxicol & Canc Risk Factors, D-69120 Heidelberg, Germany
[2] German Canc Res Ctr, Div Clin Epidemiol, D-69120 Heidelberg, Germany
[3] Roswell Pk Canc Inst, Div Canc Prevent & Populat Sci, Dept Epidemiol, Buffalo, NY 14263 USA
[4] Univ Heidelberg Hosp, Dept Gynecol Radiol, Heidelberg, Germany
[5] St Vincentius Klin, Clin Radiotherapy & Radiooncol, Karlsruhe, Germany
[6] Karlsruhe Hosp GmbH, Clin Radiotherapy, Karlsruhe, Germany
[7] Univ Klinikum Mannheim, Dept Radiat Oncol, Mannheim, Germany