[Progresses in the study of ultrasonics in China, 1997].
B
B
Dong
D000818:Animals; D019560:Echocardiography, Three-Dimensional; D017548:Echocardiography, Transesophageal; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging; D013959:Thyroid Diseases / Q000000981:diagnostic imaging; D018084:Ultrasonography, Interventional; D016216:Ultrasonography, Prenatal