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2. Ultrasonic evaluation of salivary glands;Baker;Trans. Am. Acad. Ophthalmol. Otolaryngol.,1977
3. Gray-scale ultrasonography of the thyroid;Chilcote;Radiology,1976
4. Application of the ultrasonic echo method for laryngological diagnostics in children;Brzezińska;Proc. Conf. Ultrasonics Biol. Med.,1970
5. Diagnostic Uses of Ultrasound;Goldberg,1975