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46. Quantitative B-hCG levels less than 1000 mIU/mL in patients with ectopic pregnancy: pelvic ultrasound still useful. Counselman FL; Shaar GS; Heller RA; King DK J Emerg Med; 1998; 16(5):699-703. PubMed ID: 9752940 [TBL] [Abstract][Full Text] [Related]
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53. Transvaginal sonography and human chorionic gonadotrophin measurements in suspected ectopic pregnancy: a detailed analysis of a diagnostic approach. Ankum WM; Van der Veen F; Hamerlynck JV; Lammes FB Hum Reprod; 1993 Aug; 8(8):1307-11. PubMed ID: 8408533 [TBL] [Abstract][Full Text] [Related]
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