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;

The current status of immunotherapy in colorectal cancer: A systematic review Hanna Cholewa; Pablo Guerrero-Antolino; David Quevedo; Jorge Sancho-Muriel; Matteo Frasson; Blas Flor-Lorente;

Has the COVID-19 pandemic changed the clinical picture and tumour stage at the time of presentation of patients with colorectal cancer? A retrospective cohort study Oscar Cano-Valderrama; Raquel Sánchez-Santos; Vincenzo Vigorita; Marta Paniagua; Erene Flores; Lucia Garrido; Cristina Facal; Alejandro Ruano; Alberto San-Ildefonso; Enrique Moncada;