The study was carried out within the Endoscopy Unit of the University Hospital of Neiva, which is a third level hospital. It cares for patients from strata one and two The two lowest social economic geographical units defined in Colombian law. There are 6 strata from Huila, Caquetá, Putumayo and Tolima departments.
El estudio se llevó a cabo en la Unidad de Endoscopia del Hospital Universitario de Neiva, de tercer nivel de complejidad, que atiende a pacientes principalmente del estrato uno y dos, generalmente provenientes del Huila, Caquetá, Putumayo y Tolima.