Obesity and the Associated Mediators Leptin, Estrogen and IGF-I Enhance the Cell Proliferation and Early Tumorigenesis of Breast Cancer Cells. - Lautenbach, Anne; Budde, Anne; Wrann, ChristianeD.; Teichmann, Birgit; Vieten, Gertrud; Karl, Tim; Nave, Heike (Nutrition & Cancer, 2009)