[Advances in ultrasonics].
Dong
B W
BW
D003327:Coronary Disease / Q000000981:diagnostic imaging; D015150:Echocardiography, Doppler; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000000981:diagnostic imaging; D014463:Ultrasonography / Q000379:methods; D016216:Ultrasonography, Prenatal