title: Cycles within cycles.
authors.forename: Richard T
authors.initials: RT
authors.lastname: Penson
mesh_terms: D002453:Cell Cycle / Q000502:physiology*; D045744:Cell Line, Tumor; D002986:Clinical Trials as Topic; D015179:Colorectal Neoplasms / Q000503:physiopathology / Q000517:prevention & control*; D005260:Female; D020022:Genetic Predisposition to Disease; D006801:Humans; D008593:Menopause / Q000502:physiology*; D011372:Progestins / Q000502:physiology*; D011980:Receptors, Progesterone / Q000502:physiology
chemical_list: D011372:Progestins; D011980:Receptors, Progesterone