2018, Vol. 53, Nr. 2, June By Manolis VAVURANAKIS A novel geometrical analysis of the arterial pulse based on the golden ratio φ (phi): association with heart rate variability Authors: Theodore G. PAPAIOANNOU, Manolis VAVURANAKIS, Elias GIALAFOS, Dimitrios VRACHATIS, Dimitrios SOULIS, Gerasimos SIASOS, Stamatios KYRLAGKITSIS, Christodoulos STEFANADIS and Dimitrios TOUSOULIS Abstract