1. Uterus: abnormalities of size, shape, contour and texture;Athey,1985
2. Ultrasonic evaluation of pelvic masses in pregnancy;Bezjian;Clin. Obstet. Gynecol.,1977
3. Endometriosis and inflammatory disease;Birnholz;Semin. Ultrasound,1983
4. Real-time pelvic ultrasonography as an adjunct to digital examiniation;Bluth;Radiology,1984
5. Cumulus oophorus of the preovulatory follicle assessed by ultrasound and hystology;Bomsell-Helmreich,1981