Dr. Reyes, MD, PhD is currently working as a cardiac surgeon in La Princesa Hospital in Madrid, Spain, which he joined in 2005 and become chief resident. He completed medical school training in Lyon, France and visited several centres in United States of America to complete his formation. He obtained his PhD degree in 2005 with a thesis concerning the use of the radial artery in CABG surgery. He has one Master in Statistics and one Master in Administration and Direction of Health Systems. He has published many articles in different journals, including studies regarding the use of VADs and is a member of the reviewer committee of several journals. He has been the Principal Investigator of many clinical trials and the first surgeon combining TMR therapy with stem cells injection in Europe. He has also been training cardiac surgeons from other institutions in Spain and internationally on this advanced revascularization therapy. He is specialized in doing cardiac surgery without the use of blood products, being a national reference for the management of patients requiring bloodless surgery.