TI - The Prognostic Value of Pathological Extranodal Extension and Staging Change According to the 8th Edition Pathologic Staging Modifications for Head and Neck Cancer PT - Journal Article DP - 2021 TA - EJMI PG - 486-490 VI - 5 IP - 4 AID - 2021.96176 [doi] 4100 - https://dx.doi.org/10.14744/ejmi.2021.96176 SO - EURASIAN JOURNAL OF MEDICIAL INVESTIGATION,2021 5(4): 486