1. Research Unit University Hospital Nuestra Señora de Candelaria Santa Cruz de Tenerife Spain
2. Cardiovascular Surgery Service Hospital Universitario de Canarias Santa Cruz de Tenerife Spain
3. Clinical Biochemistry Service University Hospital Nuestra Señora de Candelaria Santa Cruz de Tenerife Spain
4. Nephrology Service University Hospital Nuestra Señora de Candelaria Santa Cruz de Tenerife Spain