Journal of Adolescent Health
Volume 40, Issue 3 , Pages 227-231 , March 2007

Has Age at Menarche Changed? Results from the National Health and Nutrition Examination Survey (NHANES) 1999–2004

Received 28 July 2006 ,Accepted 4 October 2006.

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    Cumulative percentages of age at menarche by birth-year group: U.S. females 20 years and older, 1999–2004.

    Cumulative percentages of age at menarche by birth-year group: U.S. females 20 years and older, 1999–2004.

PII: S1054-139X(06)00394-6

doi: 10.1016/j.jadohealth.2006.10.002

Journal of Adolescent Health
Volume 40, Issue 3 , Pages 227-231 , March 2007

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