https://www.selleckchem.com/pr....oducts/epz005687.htm
BACKGROUND Hair graying is common in humans; but there is scarce data about its epidemiology. OBJECTIVE This study aimed to evaluate the clinical and epidemiological characteristics and associated factors of hair graying. METHODS A total of 1541 volunteers between 15 and 65 years old were included in this population-based, cross-sectional study. A questionnaire on characteristics and associated factors of hair graying was filled in by face-to-face interview method. RESULTS One thousand sixty three participants (69.0%) had hair graying
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