title: Preface.
authors.affiliation: Centre for Cancer Research, Westmead Millennium Institute, University of Sydney Medical School, Westmead, NSW, Australia. christine.clarke@sydney.edu.au.
authors.forename: Christine
authors.initials: C
authors.lastname: Clarke
authors.affiliation: Mammary Stem Cell Biology, Research Oncology, Division of Cancer Studies, King's College London, Guy's Hospital, Great Maze Pond, London, UK. gabriela.dontu@kcl.ac.uk.
authors.forename: Gabriela
authors.initials: G
authors.lastname: Dontu
authors.affiliation: Centre for Cancer Research, Westmead Millennium Institute, University of Sydney Medical School, Westmead, NSW, Australia. heidi.hilton@sydney.edu.au.
authors.forename: Heidi
authors.initials: H
authors.lastname: Hilton
authors.affiliation: Department of Internal Medicine, University Hospital of Basel, Basel, Switzerland. fabienne.meier-abt@usb.ch.
authors.forename: Fabienne
authors.initials: F
authors.lastname: Meier-Abt
authors.affiliation: Pathology, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA. Carol.Sartorius@ucdenver.edu.
authors.forename: Carol
authors.initials: C
authors.lastname: Sartorius
mesh_terms: D000818:Animals; D001943:Breast Neoplasms / Q000378:metabolism* / Q000473:pathology; D002454:Cell Differentiation; D004847:Epithelial Cells / Q000378:metabolism* / Q000473:pathology; D004967:Estrogens / Q000378:metabolism*; D005260:Female; D006801:Humans; D051379:Mice; D014411:Neoplastic Stem Cells / Q000378:metabolism* / Q000473:pathology; D011374:Progesterone / Q000378:metabolism*; D011960:Receptors, Estrogen / Q000378:metabolism; D011980:Receptors, Progesterone / Q000378:metabolism; D012307:Risk Factors; D015398:Signal Transduction
chemical_list: D004967:Estrogens; D011960:Receptors, Estrogen; D011980:Receptors, Progesterone; D011374:Progesterone