title: Spanish Cooperative Group for Gastrointestinal Tumor Therapy.
authors.forename: Enrique
authors.initials: E
authors.lastname: Aranda
mesh_terms: D002986:Clinical Trials as Topic; D005762:Gastroenterology; D005770:Gastrointestinal Neoplasms / Q000628:therapy*; D006040:Goals; D006801:Humans; D008495:Medical Oncology; D011785:Quality Assurance, Health Care; D012106:Research / Q000458:organization & administration; D012955:Societies, Medical / Q000458:organization & administration*; D013030:Spain