Osterhues Anja, Holzgreve Wolfgang, Michels Karin B
Division of Cancer Epidemiology, Comprehensive Cancer Center, Freiburg, University Medical Center Freiburg, Freiburg, Germany.
Division of Cancer Epidemiology, Comprehensive Cancer Center, Freiburg, University Medical Center Freiburg, Freiburg, Germany; Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Woman's Hospital, Harvard Medical School, Boston, MA 02115, USA.
Lancet. 2009 Sep 19;374(9694):959-961. doi: 10.1016/S0140-6736(09)61646-9.