European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology r-INCLIVA. Repositorio Institucional de Producción Científica de INCLIVA instname OMEC-working group (Supplementary File 1) 2022, ' Study protocol for the OligoMetastatic Esophagogastric Cancer (OMEC) project : A multidisciplinary European consensus project on the definition and treatment for oligometastatic esophagogastric cancer ', European Journal of Surgical Oncology . https://doi.org/10.1016/j.ejso.2022.09.012