TY  - RPRT
TI  - [2-dimensional echocardiography].
AU  - E Köhler
AU  - C Leuner
PY  - 1983
DO  - 10.1055/s-2007-1013066
UR  - https://pubmed.ncbi.nlm.nih.gov/6686893/
ID  - 6686893
ER  -