title: [Lack of menstruation and abnormal bleeding].
authors.affiliation: HUS Naistensairaala ja Helsingin yliopisto, HUS. mervi.halttunen@hus.fi
authors.forename: Mervi
authors.initials: M
authors.lastname: Halttunen
authors.forename: Satu
authors.initials: S
authors.lastname: Suhonen
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000568:Amenorrhea / Q000175:diagnosis* / Q000628:therapy*; D004412:Dysmenorrhea / Q000175:diagnosis* / Q000628:therapy*; D005260:Female; D005387:Finland; D005500:Follow-Up Studies; D006176:Gynecology / Q000379:methods*; D006801:Humans; D018570:Risk Assessment; D012720:Severity of Illness Index; D016896:Treatment Outcome