@article{doi:10.1001/archinte.1953.00240160034004,
author = {SHEARN MA and RYTAND DA},
title = {Intermittent bundle-branch block: Observations with special reference to the critical heart rate},
journal = {A.M.A. Archives of Internal Medicine},
volume = {91},
number = {4},
pages = {448-463},
year = {1953},
doi = {10.1001/archinte.1953.00240160034004},
URL = { + http://dx.doi.org/10.1001/archinte.1953.00240160034004},
eprint = {/data/Journals/INTEMED/15044/archinte_91_4_004.pdf}
}