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;

Correlation between preoperative CT scan and lung metastases according to surgical approach in patients with colorectal cancer Jorge Hernández; Laureano Molins; Juan J. Fibla; Ángela Guirao; Juan J. Rivas; Laura Casas; Núria Pajuelo; Raúl Embún;

Impact of the pandemic on surgical activity in colorectal cancer in Spain. Results of a national survey Fernando de la Portilla de Juan; María Luisa Reyes Díaz; Irene Ramallo Solía;