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2. Early gestation: correlation of HCG levels and sonographic identification. Nyberg DA; Filly RA; Mahony BS; Monroe S; Laing FC; Jeffrey RB AJR Am J Roentgenol; 1985 May; 144(5):951-4. PubMed ID: 3885694 [TBL] [Abstract][Full Text] [Related]
3. Early pregnancy complications: endovaginal sonographic findings correlated with human chorionic gonadotropin levels. Nyberg DA; Mack LA; Laing FC; Jeffrey RB Radiology; 1988 Jun; 167(3):619-22. PubMed ID: 3283831 [TBL] [Abstract][Full Text] [Related]
4. Normal intrauterine pregnancy is unlikely in emergency department patients with either menstrual days > 38 days or beta-hCG > 3,000 mIU/mL, but without a gestational sac on ultrasonography. Dart R; Kaplan B; Ortiz L; Cloherty J; Lavoie T Acad Emerg Med; 1997 Oct; 4(10):967-71. PubMed ID: 9332628 [TBL] [Abstract][Full Text] [Related]
5. Diagnosis of ectopic pregnancy: value of the discriminatory human chorionic gonadotropin zone. Romero R; Kadar N; Jeanty P; Copel JA; Chervenak FA; DeCherney A; Hobbins JC Obstet Gynecol; 1985 Sep; 66(3):357-60. PubMed ID: 3895079 [TBL] [Abstract][Full Text] [Related]
6. Discriminatory hCG zone: its use in the sonographic evaluation for ectopic pregnancy. Kadar N; DeVore G; Romero R Obstet Gynecol; 1981 Aug; 58(2):156-61. PubMed ID: 7254727 [TBL] [Abstract][Full Text] [Related]
7. Suspected ectopic pregnancy: ultrasound findings and hCG levels assessed by an immunofluorometric assay. Cacciatore B; Ylöstalo P; Stenman UH; Widholm O Br J Obstet Gynaecol; 1988 May; 95(5):497-502. PubMed ID: 3042015 [TBL] [Abstract][Full Text] [Related]
8. Transvaginal sonography in the evaluation of normal early pregnancy: correlation with HCG level. Bree RL; Edwards M; Böhm-Vélez M; Beyler S; Roberts J; Mendelson EB AJR Am J Roentgenol; 1989 Jul; 153(1):75-9. PubMed ID: 2660539 [TBL] [Abstract][Full Text] [Related]
9. Transvaginal ultrasonography in patients at risk for ectopic pregnancy. Stiller RJ; Haynes de Regt R; Blair E Am J Obstet Gynecol; 1989 Oct; 161(4):930-3. PubMed ID: 2679107 [TBL] [Abstract][Full Text] [Related]
11. The discriminatory human chorionic gonadotropin zone for endovaginal sonography: a prospective, randomized study. Kadar N; Bohrer M; Kemmann E; Shelden R Fertil Steril; 1994 Jun; 61(6):1016-20. PubMed ID: 8194610 [TBL] [Abstract][Full Text] [Related]
12. The timing of a repeat ultrasound examination in the evaluation for ectopic pregnancy. Kadar N; Romero R J Clin Ultrasound; 1982; 10(5):211-4. PubMed ID: 6804524 [TBL] [Abstract][Full Text] [Related]
13. Treatment of ectopic pregnancy: is a human chorionic gonadotropin level of 2,000 mIU/mL a reasonable threshold? Mehta TS; Levine D; Beckwith B Radiology; 1997 Nov; 205(2):569-73. PubMed ID: 9356647 [TBL] [Abstract][Full Text] [Related]
14. A contemporary approach to suspected ectopic pregnancy with use of quantitative and qualitative assays for the beta-subunit of human chorionic gonadotropin and sonography. Holman JF; Tyrey EL; Hammond CB Am J Obstet Gynecol; 1984 Sep; 150(2):151-7. PubMed ID: 6476035 [TBL] [Abstract][Full Text] [Related]
15. Prediction of location of gestational sac for pregnancy of unknown location at first sight during exploratory surgery using the ratio of hCG in haemoperitoneum and venous serum. Wang YD; Teng YC; Zhang J; Sun F; Cheng WW Eur J Obstet Gynecol Reprod Biol; 2013 Jul; 169(1):99-102. PubMed ID: 23490539 [TBL] [Abstract][Full Text] [Related]
16. Combined pelvic sonography and serum beta hCG, versus laparoscopy for the diagnosis of stable patient suspected of ectopic pregnancy. Achiron R; Schejter E; Zakut H Clin Exp Obstet Gynecol; 1987; 14(1):15-22. PubMed ID: 2434266 [TBL] [Abstract][Full Text] [Related]
17. Expectant management of abnormal concentrations of human chorionic gonadotropin during the first trimester of pregnancy. Letterie GS; Hibbert ML; Ramirez EJ Gynecol Obstet Invest; 1991; 31(3):176-8. PubMed ID: 2071058 [TBL] [Abstract][Full Text] [Related]
18. Serial serum human chorionic gonadotropin (hCG) levels in ectopic pregnancy and first trimester miscarriage. Letterie GS; Hibbert M Arch Gynecol Obstet; 2000 Apr; 263(4):168-9. PubMed ID: 10834324 [TBL] [Abstract][Full Text] [Related]
19. Abnormal pregnancy: early diagnosis by US and serum chorionic gonadotropin levels. Nyberg DA; Filly RA; Filho DL; Laing FC; Mahony BS Radiology; 1986 Feb; 158(2):393-6. PubMed ID: 3510444 [TBL] [Abstract][Full Text] [Related]
20. Further evidence against the reliability of the human chorionic gonadotropin discriminatory level. Doubilet PM; Benson CB J Ultrasound Med; 2011 Dec; 30(12):1637-42. PubMed ID: 22123998 [TBL] [Abstract][Full Text] [Related] [Next] [New Search]