Sahn, D J The validity of structure identification for cross-sectional echocardiography. [electronic resource] - Journal of clinical ultrasound : JCU Sep 1974 - 201-16 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. ISSN: 0091-2751 Standard No.: 10.1002/jcu.1870020309 doi Subjects--Topical Terms: Cardiac CatheterizationChildChild, PreschoolEchocardiography--methodsHeart Defects, Congenital--diagnosisHemodynamicsHumansIndocyanine GreenInfantInfant, NewbornMyocardium--pathology