Proliferative Effects of Estradiol- or Ethinylestradiol-Progestogen Combinations on
Human Breast Cancer Cells in an Intermitted and a Long-term Regimen
G. S. Merki-Feld
1
Clinic of Endocrinology, Department of Gynecology and Obstetrics, University Hospital,
Zurich, Switzerland
,
H. Seeger
2
Centre for Endocrinology and Menopause, University Women’s Hospital, Tübingen, Germany
,
A. O. Mueck
2
Centre for Endocrinology and Menopause, University Women’s Hospital, Tübingen, Germany