Battino, S Factors associated with withdrawal bleeding after administration of oral dydrogesterone or medroxyprogesterone acetate in women with secondary amenorrhea. [electronic resource] - Gynecologic and obstetric investigation 1996 - 113-6 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0378-7346 Standard No.: 10.1159/000291913 doi Subjects--Topical Terms: Administration, OralAdolescentAdultAmenorrhea--drug therapyCohort StudiesDouble-Blind MethodDydrogesterone--administration & dosageEndometrium--diagnostic imagingEstrogens--bloodFemaleHumansLipoproteins--bloodMedroxyprogesterone Acetate--administration & dosageMenstruation--drug effectsMenstruation-Inducing Agents--administration & dosageMiddle AgedOligomenorrhea--complicationsPatient SelectionProgesterone--bloodProgesterone Congeners--administration & dosageTriglycerides--bloodUltrasonography