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MedicineEndocrinologyGynecologyAdolescent HealthAdolescent MedicineMenstrual DisordersAdolescent Menstrual DisordersAdolescent Reproductive HealthIrregular Menstrual CyclesMenstrual CycleMenstrual HealthPubertyAdolescent DysmenorrheaAdolescent MenstruationMenstrual Cycle DisordersMenstrual Disorder EpidemiologyMenstrual Disorders AssessmentMenstrual DistressQuestionnaire Administration
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Age at Menarche and Racial Comparisons in US Girls
William Cameron Chumlea, Christine M. Schubert, Alex F. Roche et al. · PEDIATRICS · 2003 · 698 citations
Evidence for a Secular Trend in Age of Menarche
Grace Wyshak, Rose E. Frisch · New England Journal of Medicine · 1982 · 460 citations · Full text
The Length and Variability of the Human Menstrual Cycle
Leonard Chiazze · JAMA · 1968 · 375 citations