@article{doi:10.1001/jama.2009.888,
author = {Cheng S and Keyes MJ and Larson MG and et al},
title = {LOng-term outcomes in individuals with prolonged pr interval or first-degree atrioventricular block},
journal = {JAMA},
volume = {301},
number = {24},
pages = {2571-2577},
year = {2009},
doi = {10.1001/jama.2009.888},
URL = { + http://dx.doi.org/10.1001/jama.2009.888},
eprint = {/data/Journals/JAMA/4469/joc90054_2571_2577.pdf}
}