Institution: | 1. Department of Gastroenterology, Hospital General de Tomelloso, , Tomelloso, Spain;2. Research Support Unit, Hospital General La Mancha Centro, , Alcázar de San Juan, Spain;3. Department of Gastroenterology, Hospital General Universitario de Ciudad Real, , Ciudad Real, Spain;4. Department of Allergy, Hospital General Universitario de Ciudad Real, , Ciudad Real, Spain;5. Department of Gastroenterology, Hospital San Pedro de Alcantara, , Caceres, Spain |