Influence of the lockdown due to COVID-19 on weight-loss results during the first year after sleeve gastrectomy David Ruiz de Angulo; Andrés Balaguer Román; Vicente Munitiz Ruiz; Pedro José Gil Vázquez; Guadalupe Ruiz Merino; M. Ángeles Ortiz Escandell; Luisa F. Martínez de Haro; Pascual Parrilla Paricio;

`Siewert type IV¿: A 21st-century disease with a 20th-century surgical treatment David Ruiz de Angulo; Vicente Munitiz Ruiz;

Elective versus non-elective surgery in the treatment of giant paraoesophageal hiatal hernia Ana María Fuentes Zaplana; José Ruiz Pardo; Pedro Antonio Sánchez Fuentes; Elisabet Vidaña Márquez; Luis Candil Valero; Daniel González Sánchez; Ricardo Belda Lozano; Ángel Reina Duarte;