1. Cardiology Unit
2. Department of Biomedical Science, Human Nutrition
3. Analyses Laboratory, ‘San Camillo de Lellis' Hospital, Manfredonia, Foggia
4. Department of Biomedical Science, Clinical Biochemistry, University ‘G. D'Annunzio’, Chieti, Italy
5. Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana, USA