Severe gastroduodenitis due to Strongyloides stercoralis infection: An unusual cause of intestinal obstruction C.A. Cuadros-Mendoza; K. Lozano-Agudelo; J.P. Otoya-Castrillon; F. Serrato-Roa; Y.A. Navarro-Mejia;

Cricopharyngeal achalasia: A rare cause of dysphagia in infancy C.A. Cuadros-Mendoza; K. Lozano-Agudelo; M.C. Gómez-Franco; L.V. Parra Izquierdo;