Comparison of transvaginal sonography, saline infusion sonography, and hysteroscopy in premenopausal women with abnormal uterine bleeding. - De Vries,L.D.; Dijkhuizen,F.P.; Mol,B.W.; Brolmann,H.A.; Moret,E.; Heintz,A.P. (J Clin Ultrasound, 2000)