Head of Cardiology Department University Hospital Jerez (Spain) Hospital Vithas Nisa Aljarafe (Seville) Spain Enrique Otero Chulian is Phd, European cardiologist, and has been: 1985-1987, assistant professor of internal medicine, University of Cadiz; director prevention & cardiac rehabilitation unit at University Hospital Puerta del Mar (Cádiz), head cardiology department Hospital Jerez 2016-2018; training in nuclear cardiology, at The University of Texas Health Science Center at Dallas & Parkland Memorial Hospital, EE. UU, by James T Willerson M. D. September-December 1984, sponsor of investiture as doctor “honoris causa” of the most excellence PROF. JAMES T. WILLERSON. University of Cadiz, Publications: 70 Actually, works at the Vithas Nisa Hospital in Seville