title: [Progress in the study of ultrasonography in China].
authors.forename: X
authors.initials: X
authors.lastname: Wang
authors.forename: L
authors.initials: L
authors.lastname: Liu
mesh_terms: D003331:Coronary Vessels / Q000000981:diagnostic imaging*; D004452:Echocardiography / Q000379:methods; D006801:Humans; D014463:Ultrasonography / Q000379:methods; D018084:Ultrasonography, Interventional