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Important parameters analyzed in the study
| Parameter | Description |
|---|---|
| AJCC stage | 7th edition, American Joint Committee on Cancer, 2010 |
| ENETS stage | 1st edition, European Neuroendocrine Tumor Society, 2006 |
| WHO grade Histologic grade LNR |
3rd edition, World Health Organization, 2010 Assessed by tissue differentiation based on HE staining Lymph node ratio, calculated using the number of positive regional lymph nodes divided by the number of examined regional lymph nodes |
