Jose A. Carrión comes from Spain and qualified as a doctor in 2000 and a Gastroenterologist in 2004 at the Hospital Clínic of Barcelona. He holds a master’s degree in liver disease research from the Universitat de Barcelona. After training as a General Hepatologist with an interest in adult liver diseases, he became involved in a liver transplant program. He researched Hepatitis C recurrence after liver transplantation and holds a Doctoral Degree in Medicine (MD) obtained in 2010 with the highest qualifications. His papers have been published in important journals, such as Gastroenterology, Hepatology, Journal of Hepatology, Liver International, Journal of Viral Hepatitis, and Liver Transplantation. Nowadays, Dr. Carrión works as a member of the Liver Unit in the Gastroenterology Department of the “Hospital del Mar”. Hospital del Mar is one of the most outstanding Hospitals in Spain focused on liver diseases, especially Hepatitis in immunocompetent adults and coinfected patients. Other clinical interests include noninvasive diagnosis of liver fibrosis and diagnosis and treatment of Hepatocellular Carcinoma.