TY  - RPRT
TI  - Editorial: Educational problems in echocardiography.
AU  - H Feigenbaum
PY  - 1974
DO  - 10.1016/0002-9149(74)90167-2
UR  - https://pubmed.ncbi.nlm.nih.gov/4423083/
ID  - 4423083
ER  -