title: Advanced esophageal squamous cell carcinoma in patient with lonstanding achalasia.
authors: Mar
authors: M
authors: Lozano-Maya
authors: Angel
authors: A
authors: Ponferrada-Díaz
authors: Antonio
authors: A
authors: Díaz-Sánchez
authors: Gemma
authors: G
authors: Carrión-Alonso
authors: Asunción
authors: A
authors: Barreiro-Fernández
authors: Sonia
authors: S
authors: Martín-Chavarri
authors: Mercedes
authors: M
authors: Aldeguer-Martínez