@article{doi:10.1001/jama.1909.02540300040005,
title = {DIagnostic importance of electric variations in the heart},
journal = {Journal of the American Medical Association},
volume = {LII},
number = {4},
pages = {300-301},
year = {1909},
doi = {10.1001/jama.1909.02540300040005},
URL = { + http://dx.doi.org/10.1001/jama.1909.02540300040005},
eprint = {/data/Journals/JAMA/10279/jama_LII_4_005.pdf}
}