 3. Histologically confirmed diagnosis of adenocarcinoma of the stomach and esophagogastric EG junction classified as uT2uT3uT4, any N category, M0 or any uT, N, M0 patient for patients having received neoadjuvant chemotherapy or pT2pT3pT4, any N category, M0 or any pT, N, M0 for patients having received primary surgery according to Union international contre le cancer UICC TNM edition 7. 