Irregularly Irregular Heartbeats Occur Regularly in the ICU.

@article{Weissman2015IrregularlyIH,
  title={Irregularly Irregular Heartbeats Occur Regularly in the ICU.},
  author={Charles Weissman},
  journal={Critical care medicine},
  year={2015},
  volume={43 11},
  pages={2510-1}
}