MacLennan, Alastair H Is endometrial monitoring required with the use of long-term unopposed vaginal estrogen? [electronic resource] - Climacteric : the journal of the International Menopause Society Oct 2006 - 321-2 p. digital Publication Type: Editorial ISSN: 1369-7137 Standard No.: 10.1080/13697130600955229 doi Subjects--Topical Terms: Administration, IntravaginalEndometrial Neoplasms--epidemiologyEndometrium--drug effectsEstrogens--administration & dosageFemaleHumansMass Screening--economics