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8. [Combined use of duplex sonography and CW Doppler in diseases of the carotid arteries]. Zwicker C, Huben H, Langer M, Fiegler W. Rontgenblatter; 1987 Oct 10; 40(10):311-4. PubMed ID: 2961043 [Abstract] [Full Text] [Related]
9. [Value of Doppler and duplex sonography studies of the extracranial carotid system performed by technical assistants]. Felber S, Aichner F, Homma H. Ultraschall Med; 1985 Oct 10; 6(5):282-5. PubMed ID: 2934814 [Abstract] [Full Text] [Related]