@misc{indiciaedf22a2a2d99a, title = {Mitral valvuloplasty.}, author = {D M Cosgrove and W J Stewart}, year = {1989}, doi = {10.1016/s0146-2806(89)80002-7}, url = {https://pubmed.ncbi.nlm.nih.gov/2667897/}, note = {Source identifier: 2667897} }