title: Lettsomian Lectures. Is amenorrhoea safe?
authors: H S
authors: HS
authors: Jacobs
mesh_terms: D000293:Adolescent; D000328:Adult; D000568:Amenorrhea / Q000150:complications* / Q000209:etiology / Q000503:physiopathology; D015519:Bone Density / Q000502:physiology; D003430:Cross-Sectional Studies; D015914:Estrogen Replacement Therapy; D005260:Female; D050723:Fractures, Bone / Q000209:etiology; D006801:Humans; D010024:Osteoporosis / Q000209:etiology