@misc{indiciaed899d1bb4468, title = {Diagnosis and quantification of arrhythmias in ambulatory patients using an improved R-R interval plotting system.}, author = {M G Lopes and J Fitzgerald and D C Harrison and J S Schroeder}, year = {1975}, doi = {10.1016/0002-9149(75)90117-4}, url = {https://pubmed.ncbi.nlm.nih.gov/48334/}, note = {Source identifier: 48334} }