Does tumor depth affect nodal upstaging in squamous cell carcinoma of the head and neck?

1. Alkureishi, L.W.T.
2. Ross, G.L.
3. Shoaib, T.
4. Soutar, D.S.
5. Robertson, A.G.
6. Sorensen, J.A.
7. Thomsen, J.
8. Krogdahl, A.
9. Alvarez, J.
10. Barbier, L.
11. Santamaria, J.
12. Poli, T.
13. Sesenna, E.
14. Kovács, A.F.
15. Grünwald, F.
16. Barzan, L.
17. Sulfaro, S.
18. Alberti, F.