2[1]Sowter Mc,Farquhar CM,Petrie KJ,et al.A randomised trail comparing single does systemic methotrexate and laparoscopic surgery for the treatment of unruptured tubal pregnancy.BJOG,2001,108:192.
3[4]Grucia Cr,Barmbart KT.Diagnosing ectopic pregnancy:decision analysis comparing six strategies.Obstet Gynecol,2001,97:464-470.
4[1]Kurjak A,Jurkovic D,Alfirevic Z,et al.Transvaginal color Doppler imaging.JCU,1990,18(4):227-234.
5[2]Kurjak A,Crvenkovic G,Salihagic A,et al.The assessment of normal early pregnancy by transvaginal color Doppler ultrasonography.JCU,1993,21(1):3-8.
6[4]Dubinsky TJ,Parvey HR,Maklad N.Endometrial color flow/imagedirected Dopplerimaging:negative predictive value for excluding ectopic pregnancy.Coll Antropol,2000,24(2):391-395.
7[6]Stefanovic V,Cacciatore B,Ylostalo P.Tubal artery blood flow in evaluation of tubal pregnancy.Acta Obste Gvnecol Scand,1996,75(8):745-747.
8[7]Tekay A,Jouppila P.Color Doppler flow as an indicator of trophoblastic activity in tubal pregnancies detected by transvaginal ultrasound.Obstet Gvnecol,1992,80(6):995-999.
