title: Length of menstrual cycles and their variability.
authors.forename: P
authors.initials: P
authors.lastname: Monari
authors.forename: A
authors.initials: A
authors.lastname: Montanari
mesh_terms: D000367:Age Factors; D003710:Demography; D019049:Developed Countries; D004739:England; D005060:Europe; D008597:Menstrual Cycle; D008598:Menstruation; D008962:Models, Theoretical; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D012098:Reproduction; D012106:Research; D013997:Time Factors; D006113:United Kingdom
keywords: Age Factors; Demographic Factors; Developed Countries; England; Europe; Menstrual Cycle; Menstruation; Models, Theoretical; Northern Europe; Population; Population Characteristics; Population Dynamics; Reproduction; Research Methodology; Time Factors; United Kingdom