1. Common meta‐analysis stage scale.
| T | N | M | Meta‐analysis Stage | AJC Stage |
| 0,1,2,X,S | 0 | 0 | I | I |
| 0,1,2,X,S | 1 | 0 | II | II |
| Any | 2,3 | 0 | III | III non‐metastatic |
| 3,4 | Any | 0 | III | III non‐metastatic |
| Any | Any | 1 | IV | Any metastatic |
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