title: The menarche.
authors.affiliation: St Mary's Hospital Medical School, London.
authors.forename: R
authors.initials: R
authors.lastname: Cochrane
mesh_terms: D000293:Adolescent; D000375:Aging / Q000502:physiology; D002648:Child; D005260:Female; D006266:Health Education; D006801:Humans; D008572:Menarche / Q000502:physiology*; D008599:Menstruation Disturbances / Q000209:etiology; D013997:Time Factors