- Mäkikallio, T. H., Seppänen, T., Airaksinen, K. J., Koistinen, J., Tulppo, M. P., Peng, C. K., ... & Huikuri, H. V. (1997). Dynamic analysis of heart rate may predict subsequent ventricular tachycardia after myocardial infarction. The American journal of cardiology, 80(6), 779-783.