Prof. Jordi Salas-Salvadó   Bachelor of Medicine and Surgery Principal investigator of the study PREDIMED Node NURETA (Reus-Tarragona Nutrition)
	Dr. Josep Basora   Bachelor of Medicine and Surgery Research Coordinator, Directorate of Primary Care Tarragona-Reus. Friend of the study since 2003
	Dra. Mònica Bulló-Bonet Degree in Biology Responsible for biological samples Collaborator in the study since 2003
	Dr. Joan Fernández-Ballart   Medical specialist in Preventive Medicine and Public Health Statistical Advisor Friend of the study since 2003
	Rosa González-Pérez Nursing Care Center Primary Reus Nurse Study Collaborator in the study since 2003
	Dra. Nancy Babio-Sánchez Degree in Nutrition Coordinator of the field work of the dietitian. Collaborator in the study since 2007
	Cristina Molina-Llauradó Diploma in Human Nutrition and Dietetics Dietitian of the fieldwork. Collaborator in the study since 2008
	Mar Sorlí-Aguilar Diploma in Human Nutrition and Dietetics Dietitian of the fieldwork. Collaborator in the study since 2008
	Núria Ibarrola Jurado Diploma in Human Nutrition and Dietetics Dietitian. Responsible for data entry. Collaborator in the study since 2007
	Mar García-Aloy Diploma in Human Nutrition and Dietetics Dietitian of the study. Collaborative Study from 2009