TY  - RPRT
TI  - Two-dimensional echocardiography.
AU  - J B Seward
AU  - A J Tajik
PY  - 1980
DO  - 10.1016/s0025-7125(16)31614-5
UR  - https://pubmed.ncbi.nlm.nih.gov/6446009/
ID  - 6446009
ER  -