TY  - GEN
AU  - Frye,R L
AU  - Ritter,D G
TI  - Ultrasonic imaging of the heart
SN  - 0025-6196
PY  - 1978///0628
KW  - Echocardiography
KW  - Heart Defects, Congenital
KW  - diagnosis
KW  - Humans
N1  - Publication Type: Editorial
ER  -