title: [A secular trend in age at menarche in Japan].
authors.forename: M
authors.initials: M
authors.lastname: Moriyama
authors.forename: H
authors.initials: H
authors.lastname: Kashiwazaki
authors.forename: T
authors.initials: T
authors.lastname: Suzuki
mesh_terms: D000367:Age Factors; D001208:Asia; D003710:Demography; D019049:Developed Countries; D005202:Asia, Eastern; D007564:Japan; D008572:Menarche; D008598:Menstruation; D011153:Population; D011154:Population Characteristics; D012098:Reproduction
keywords: Age Factors; Asia; Demographic Factors; Developed Countries; Eastern Asia; Japan; Menarche; Menstruation; Population; Population Characteristics; Reproduction