title: Message from the Editor-in-Chief.
authors.affiliation: Department of Gynaecology and Obstetrics, University of Regensburg, Caritas-Hospital St. Josef, Landshuter Straße 65, 93053, Regensburg, Germany, olaf.ortmann@klinik.uni-regensburg.de.
authors.forename: Olaf
authors.initials: O
authors.lastname: Ortmann
mesh_terms: D001943:Breast Neoplasms / Q000139:chemically induced*; D004967:Estrogens / Q000009:adverse effects; D005260:Female; D020249:Hormone Replacement Therapy / Q000009:adverse effects*; D006801:Humans; D011374:Progesterone / Q000009:adverse effects; D012306:Risk; D016387:Women's Health
chemical_list: D004967:Estrogens; D011374:Progesterone