@misc{indiciae492480231a08, title = {Unusual diagnostic problems in mitral stenosis.}, author = {E J KROEKER and M C GEOKAS}, year = {1963}, doi = {10.1016/s0025-7125(16)33587-8}, url = {https://pubmed.ncbi.nlm.nih.gov/14035898/}, note = {Source identifier: 14035898} }