Ma, D Q [Diagnosis of masses in the parotid gland by ultrasonic tomography]. [electronic resource] - Zhonghua kou qiang ke za zhi [Chinese journal of stomatology] Sep 1984 - 165-7 p. digital Publication Type: Journal Article ISSN: 0412-4014 Subjects--Topical Terms: AdolescentAdultAgedChildFemaleHumansMaleMiddle AgedParotid Neoplasms--diagnosisTomographyUltrasonography