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TABLE 1

Normal Menstrual Cycles in Young Females

Menarche (median age): 12.43 years 
Mean cycle interval: 32.2 days in first gynecologic year 
Menstrual cycle interval: typically 21–45 days 
Menstrual flow length: ≤7 days 
Menstrual product use: 3–6 pads/tampons per day 
Menarche (median age): 12.43 years 
Mean cycle interval: 32.2 days in first gynecologic year 
Menstrual cycle interval: typically 21–45 days 
Menstrual flow length: ≤7 days 
Menstrual product use: 3–6 pads/tampons per day 
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