@article{doi:10.1001/jama.281.23.2231, author = {Choudhry NK and Etchells EE}, title = {DOes this patient have aortic regurgitation?}, journal = {JAMA}, volume = {281}, number = {23}, pages = {2231-2238}, year = {1999}, doi = {10.1001/jama.281.23.2231}, URL = { + http://dx.doi.org/10.1001/jama.281.23.2231}, eprint = {/data/Journals/JAMA/4649/JRC80002.pdf} }