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11. Evaluation of threatened abortion by human chorionic gonadotropin levels and ultrasonography. Sande HA, Reiertsen O, Fønstelien E, Torjesen P. Int J Gynaecol Obstet; 1980; 18(2):123-7. PubMed ID: 6108250 [Abstract] [Full Text] [Related]
14. [Fractionated analysis of human chorionic gonadotropins and ultrasonic studies. Supplementary methods for the diagnosis and differential diagnosis of abortions]. Wallner H, Johannigmann J, Zahn V. Z Allgemeinmed; 1972 Jan 20; 48(2):75-9. PubMed ID: 5058844 [No Abstract] [Full Text] [Related]
15. [Study of HCG levels in threatened pregnancy]. Zenísek L, Hadam I, Batová D, Mohapl M. Cesk Gynekol; 1968 Dec 20; 33(10):718-21. PubMed ID: 5709008 [No Abstract] [Full Text] [Related]
17. [Evaluation of the prognosis of threatened abortion by the determination of HCG in serum and urine]. Reiertsen O, Sande HA, Fønstelien E, Torjesen P. Tidsskr Nor Laegeforen; 1980 Dec 10; 100(34-36):2038-40. PubMed ID: 7456066 [No Abstract] [Full Text] [Related]