8Lee CN, WF, Chen CA, et al. Angiogensis of endomeirial carcinlmas assessed by measurementofintratumoral blood flow,microvessel density , and vascuoar endothelial growth factor levels. Obstet Gynecol,2000,96 (4) : 615 - 621.
9Asim K, Ivica Z, Zarko A, et al. The assessment of abnormal pelvic blood flow by transvaginal color and pulsed doppler. Ultrasound in Med&Biol, 1999,6 (3) :326.
10Basgul A Y, Kayak Z N, Isci H, et al. Prenatal diagnosis of a digynic triploid fetus in the second trimester: transvagi- nal two - dimensional ultrasound, color doppler and fetopla- cental Doppler velocity waveform findings. Clin Exp Obstet Gynecol,2011,38 ( 3 ) :303 - 305.
