Menstrual synchorony and suppression.
D000293:Adolescent; D000328:Adult; D000818:Animals; D003624:Darkness; D005260:Female; D000882:Haplorhini; D006801:Humans; D007398:Interpersonal Relations; D008027:Light; D008297:Male; D008598:Menstruation; D010828:Physiology, Comparative; D014495:Universities