@misc{indiciae964e0aa28e54, title = {Complex patterns of abnormal heartbeats}, author = {Schulte-Frohlinde, Verena and Ashkenazy, Yosef and Goldberger, Ary L. and Ivanov, Plamen Ch and Costa, Madalena and Morley-Davies, Adrian and Stanley, H. Eugene and Glass, Leon}, year = {2002}, url = {https://ntrs.nasa.gov/citations/20040088058}, note = {Source identifier: 20040088058} }