@misc{indiciaef9f60cb92722, title = {Vectorcardiograms in aortic and mitral regurgitation -- a comparative study.}, author = {M Motomura and T Hoshino and G Tomonaga and S Morioka and Y Shimono}, year = {1977}, doi = {10.1253/jcj.41.983}, url = {https://pubmed.ncbi.nlm.nih.gov/916157/}, note = {Source identifier: 916157} }