TY  - RPRT
TI  - [2-dimensional sector echocardiography].
AU  - E Grube
AU  - H Simon
PY  - 1979
DO  - 10.1055/s-0028-1103946
UR  - https://pubmed.ncbi.nlm.nih.gov/436630/
ID  - 436630
ER  -