@misc{indiciaef6fb591b1d5b, title = {[Indications for echocardiography].}, author = {H P Krayenbühl and J Turina}, year = {1977}, doi = {10.1055/s-0028-1104956}, url = {https://pubmed.ncbi.nlm.nih.gov/880880/}, note = {Source identifier: 880880} }