title: Menarche in Newcastle upon Tyne girls.
authors.forename: W Z
authors.initials: WZ
authors.lastname: Billewicz
authors.forename: H M
authors.initials: HM
authors.lastname: Fellowes
authors.forename: A M
authors.initials: AM
authors.lastname: Thomson
mesh_terms: D000367:Age Factors; D000886:Anthropometry; D001695:Biology; D003710:Demography; D019049:Developed Countries; D004467:Economics; D004739:England; D005060:Europe; D008572:Menarche; D008598:Menstruation; D011153:Population; D011154:Population Characteristics; D012098:Reproduction; D012106:Research; D012107:Research Design; D012959:Socioeconomic Factors; D006113:United Kingdom
keywords: Age Factors; Anthropometry; Biological Characteristics; Biology; Demographic Factors; Developed Countries; Economic Factors; England; Europe; Measurement; Menarche; Menstruation; Northern Europe; Population; Population Characteristics; Reproduction; Research Methodology; Socioeconomic Factors; United Kingdom