Heart rate variability for risk assessment of myocardial ischemia in patients without known coronary artery disease: The HRV‐DETECT (heart rate variability for the detection of … I Goldenberg, R Goldkorn, N Shlomo, M Einhorn, J Levitan, R Kuperstein, ... Journal of the American Heart Association 8 (24), e014540, 2019 | 110 | 2019 |

Numerical study of Zeno and anti-Zeno effects in a local potential model WC Schieve, LP Horwitz, J Levitan Physics Letters A 136 (6), 264-268, 1989 | 75 | 1989 |

Geometry of Hamiltonian chaos L Horwitz, YB Zion, M Lewkowicz, M Schiffer, J Levitan Physical review letters 98 (23), 234301, 2007 | 62 | 2007 |

Discrimination of the healthy and sick cardiac autonomic nervous system by a new wavelet analysis of heartbeat intervals Y Ashkenazy, M Lewkowicz, J Levitan, H Moelgaard, PEB Thomsen, ... Fractals 6 (03), 197-203, 1998 | 61 | 1998 |

Scale-specific and scale-independent measures of heart rate variability as risk indicators Y Ashkenazy, M Lewkowicz, J Levitan, S Havlin, K Saermark, ... Europhysics letters 53 (6), 709, 2001 | 53 | 2001 |

Chaoticlike behavior in a quantum system without classical counterpart Y Ashkenazy, LP Horwitz, J Levitan, M Lewkowicz, Y Rothschild Physical review letters 75 (6), 1070, 1995 | 42 | 1995 |

Discrimination between healthy and sick cardiac autonomic nervous system by detrended heart rate variability analysis Y Ashkenazy, M Lewkowicz, J Levitan, S Havlin, K Saermark, ... Fractals 7 (01), 85-91, 1999 | 35 | 1999 |

Heart Rate Variability Density Analysis (*Dyx*) and Prediction of Long‐Term Mortality after Acute Myocardial InfarctionRM Jørgensen, SZ Abildstrøm, J Levitan, R Kobo, N Puzanov, ... Annals of Noninvasive Electrocardiology 21 (1), 60-68, 2016 | 33 | 2016 |

Comparison of the usefulness of heart rate variability versus exercise stress testing for the detection of myocardial ischemia in patients without known coronary artery disease R Goldkorn, A Naimushin, N Shlomo, A Dan, D Oieru, I Moalem, E Rozen, ... The American journal of cardiology 115 (11), 1518-1522, 2015 | 30 | 2015 |

Comparison of recent methods of analyzing heart rate variability K Saermark, M Moeller, U Hintze, H Moelgaard, PE Bloch Thomsen, ... Fractals 8 (04), 315-322, 2000 | 27 | 2000 |

Multipole analysis of heart rate variability as a predictor of imminent ventricular arrhythmias in ICD patients GUY Rozen, ROI Kobo, ROY Beinart, S Feldman, M Sapunar, D Luria, ... Pacing and Clinical Electrophysiology 36 (11), 1342-1347, 2013 | 23 | 2013 |

Method and system for measuring heart rate variability J Levitan, M Lewkowicz US Patent 6,731,974, 2004 | 23 | 2004 |

A soluble model for time dependent perturbations of an unstable quantum system LP Horwitz, J Levitan Physics Letters A 153 (8-9), 413-419, 1991 | 23 | 1991 |

Statistical analysis of the DIAMOND MI study by the multipole method RM Olesen, PEB Thomsen, K Særmark, M Glikson, S Feldman, ... Physiological Measurement 26 (5), 591, 2005 | 22 | 2005 |

The approximation to the exponential decay law H Jakobovits, Y Rothschild, J Levitan American Journal of Physics 63 (5), 439-442, 1995 | 22 | 1995 |

Small time behaviour of an unstable quantum system J Levitan Physics Letters A 129 (5-6), 267-272, 1988 | 22 | 1988 |

Apparatus, system and method of determining a heart rate variability value J Levitan, R Kobo US Patent 8,798,732, 2014 | 21 | 2014 |

Chaotic signatures in the spectrum of a quantum double well R Berkovits, Y Ashkenazy, LP Horwitz, J Levitan Physica A: Statistical Mechanics and its Applications 238 (1-4), 279-284, 1997 | 16 | 1997 |

Morphological changes in H1299 human lung cancer cells following w-band millimeter-wave irradiation K Komoshvili, T Becker, J Levitan, A Yahalom, A Barbora, ... Applied Sciences 10 (9), 3187, 2020 | 15 | 2020 |

Description of complex time series by multipoles M Lewkowicz, J Levitan, N Puzanov, N Shnerb, K Særmark Physica A: Statistical Mechanics and its Applications 311 (1-2), 260-274, 2002 | 15 | 2002 |