title: Toward delineating menstrual symptom groupings: examination of factor analytic results of menstrual symptom instruments.
mesh_terms: D000328:Adult; D004412:Dysmenorrhea / Q000175:diagnosis*; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008598:Menstruation; D008599:Menstruation Disturbances / Q000175:diagnosis*; D011594:Psychometrics; D011795:Surveys and Questionnaires