
pmid: 7017929
Through a misinterpretation of historical data, the age of menarche in the 19th century is erroneously taken to have been 17 years. This error has resulted in unwarranted beliefs about change in female sexual maturation in the United States.
Adolescent, Age Factors, History, 19th Century, History, 20th Century, History, Medieval, United States, Menstruation, England, Humans, Female, History of Medicine, Child
Adolescent, Age Factors, History, 19th Century, History, 20th Century, History, Medieval, United States, Menstruation, England, Humans, Female, History of Medicine, Child
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