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29. [Obstetric Doppler ultrasound--course in Malmo 22-24 April 1991. Report]. Wretsén A Jordemodern; 1991 Sep; 104(9):316-9. PubMed ID: 1765561 [No Abstract] [Full Text] [Related]
30. [Determination of birth date by early ultrasonography]. Børdahl E; Moe N Tidsskr Nor Laegeforen; 1992 Jun; 112(16):2112-3. PubMed ID: 1523636 [TBL] [Abstract][Full Text] [Related]
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34. [Prevention of twin collision using ultrasound in the first phase of labor]. Stanojević D; Sretenović Z; Hajrić A Srp Arh Celok Lek; 2000; 128(1-2):62-3. PubMed ID: 10916466 [No Abstract] [Full Text] [Related]
35. [A microcomputer system for obstetrical ultrasonic examinations]. Madzharov M Akush Ginekol (Sofiia); 1990; 29(5):4-8. PubMed ID: 2091475 [TBL] [Abstract][Full Text] [Related]
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37. Fetal acoustic stimulation as a possible adjunct to diagnostic obstetric ultrasound: a preliminary report. Sarno AP; Bruner JP Obstet Gynecol; 1990 Oct; 76(4):668-70. PubMed ID: 2216200 [TBL] [Abstract][Full Text] [Related]