The entities used as controls for comparison have frequencies that match those reported in the bulletins of the Colombian Association of Gastrointestinal Endoscopy mentioned above and which were within the ranges reported in the literature 23, 41, 51, 55, 59, 60.
Las entidades usadas como controles para comparación, tienen frecuencias que encajan con las reportadas en los boletines de la Asociación Colombiana de Endoscopia Digestiva antes mencionados y dentro de los rangos descritos en la literatura 23, 41, 51, 55, 59, 60.