A. Orfanakis

Long-term prognostic value of heart-rate recovery after treadmill testing in patients with diabetes mellitus.

Ioannis Tsougos, Panagiotis Georgoulias, Varvara Valotassiou, 2009, International journal of cardiology.

Evaluation of abnormal heart-rate recovery after exercise testing in patients with diabetes mellitus: Correlation with myocardial SPECT and chronotropic parameters

P. Vardas, I. Fezoulidis, P. Georgoulias, 2007, Nuclear medicine communications.

Reproducibility of time-domain indexes of heart rate variability in patients with vasovagal syncope.

P. Vardas, G. Kochiadakis, G. Chlouverakis, 1997, The American journal of cardiology.

The contribution of isoproterenol to the prolonged tilt test.

P. Vardas, G. Kochiadakis, S. Chrysostomakis, 1995, International journal of cardiology.

Intraindividual Reproducibility of Heart Rate Variability Before and During Postural Tilt in Patients with Syncope of Unknown Origin

P. Vardas, PANOS VARDAS, GEORGE KOGHIADAKIS, 1994, Pacing and clinical electrophysiology : PACE.

Abnormal heart rate recovery immediately after treadmill testing: Correlation with clinical, exercise testing, and myocardial perfusion parameters

Panos Vardas, Panagiotis Georgoulias, P. Vardas, 2003, Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology.