Adult transthoracic echocardiography.
D000328:Adult; D002309:Cardiology / Q000193:education / Q000592:standards*; D002983:Clinical Competence / Q000592:standards; D003406:Credentialing / Q000592:standards*; D004452:Echocardiography / Q000592:standards*; D004503:Education, Medical, Graduate / Q000592:standards*; D006331:Heart Diseases / Q000000981:diagnostic imaging; D006801:Humans; D012955:Societies, Medical; D014481:United States