Juan Carlos Andreu-Ballester MD, PhD os currently Head of the Research Unit Arnau de Vilanova Hospital. He has a Medical and Surgery Diplomate and Doctorate in Medicine (PhD) from the Medicine School University of Valencia (Spain) and a Higher Diplomate in Methodology Clinic Research. He is an Emergency Medicine Diplomate and Family Practice Physician Specialist, Chief of the Emergency Department and the Short-Medical Staying Unit. He currently works at the Research of Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO –Public Health), Valencia (Spain), and Parasitic Immunobiology and Immunomodulation Research Group (INMUNOPAR) Complutense University of Madrid (Spain). He was awarded the Valencian Society of Surgery for the best research work on the analysis of changes in diagnostic and therapeutic strategies for rectal cancer. He is an associate professor of the Family Practice Physician Specialty program, School of Studies for Health, Valencia, the President of Ethics and Research Committee of the Arnau de Vilanova Hospital (Valencia, Spain) and Head of the Technical Secretary of the Committee on Clinical Trials with Medicines. He is currently investigating the immunology of the mucosal-associated lymphoid tissue system related with sepsis, inflammatory bowel disease and cancer. He is a reviewer of the New England Journal of Medicine, Clinical Immunology, Journal of Clinical Immunology, BMC Infectious Disease, etc.