HECHT, E L The endometrial aspiration smear; research status and clinical value. [electronic resource] - American journal of obstetrics and gynecology Apr 1956 - 819-33 p. digital Publication Type: Journal Article ISSN: 0002-9378 Standard No.: 10.1016/0002-9378(56)90578-6 doi Subjects--Topical Terms: Endometrial NeoplasmsEndometriumFemaleHumansNeoplasms