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The range of total and compartmental (level I&IIA) cervical lymph node (LN) yield in the patients of the study
| clinical nodal stage | Number of patients | Range of total LN harvest | Range of LN yield in level I& level IIA | Range of pathologically positive LN in level I & level IIA | Number of patients with Pathologically positive nodes (pN+) | |
|---|---|---|---|---|---|---|
| N0 | 20 | 11 − 24 | 6 − 12 | 0 − 1 | pN0 19 | 19 |
| pN1(mi) | 1 | |||||
| N1 | 16 | 12 − 33 | 8 − 17 | 1 − 7 | pN0 | 4 |
| pN1 | 3 | |||||
| pN2a | 3 | |||||
| pN2b | 6 | |||||
