title: Examination of the hypothesis of a critical weight at menarche in ambulatory and bedridden mentally retarded girls.
mesh_terms: D000293:Adolescent; D000328:Adult; D001481:Basal Metabolism; D001826:Body Fluids / Q000378:metabolism; D001835:Body Weight; D002648:Child; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000378:metabolism; D008572:Menarche; D009068:Movement