With Irene Carrion-Sanchez and Jose Luis Zamorano, Ramon and Cajal University Hospital, Madrid - Spain.

With Shinwan Kany, The University Medical Center Hamburg-Eppendorf, Hamburg - Germany, and Shaan Khurshid, Massachusetts General Hospital and Harvard Medical School - USA.

With Viviana Maestrini, Sapienza University of Rome - Italy and Sara Monosilio, Sapienza University of Rome - Italy.

With Raul Santos, Hospital Israelita Albert Einstein,Sao Paulo -Brazil.

With Kwan-Leung CHAN & Lawrence Lau, University of Ottawa Heart institute - Canada.

With Torsten Doenst & Philine Fleckenstein, Jena University Hospital, Friedrich Schiller University of Jena - Germany.

With Marta Cvijic & Jana Ambrozic, University Medical Centre Ljubljana - Slovenia.

With Juerg Schwitter, Ambra Masi & Panagiotis Antiochos, University Hospital Lausanne, Lausanne - Switzerland.

With Rohan Khera & Evangelos Oikonomou, Yale School of Medicine, New Haven - USA

With Omar Hahad & Andreas Daiber, University Medical Center of the Johannes Gutenberg University Mainz, Mainz - Germany