[Age at menarche. Retrospective study of 500 normal girls].
D000293:Adolescent; D000367:Age Factors; D001827:Body Height; D001835:Body Weight; D002648:Child; D005260:Female; D006801:Humans; D007558:Italy; D008572:Menarche; D012424:Rural Population; D012959:Socioeconomic Factors
Età di comparsa del menarca. Indagine retrospettiva su 500 ragazze normotipo.