FIRST, A Functional menstrual disorders; investigation and endocrine therapy. [electronic resource] - The Medical clinics of North America 1945 - 1375-86 p. digital Publication Type: Journal Article ISSN: 0025-7125 Standard No.: 10.1016/s0025-7125(16)36009-6 doi Subjects--Topical Terms: FemaleHumansMenstruationMenstruation Disturbances