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Predictive factors for late cervical metastasis in stage I and II squamous cell carcinoma of the lip

Crossref DOI link: https://doi.org/10.1007/s00405-019-05457-x

Published Online: 2019-06-04

Published Print: 2019-07

Update policy: https://doi.org/10.1007/springer_crossmark_policy

Authors

Kavabata, Norberto K. https://orcid.org/0000-0003-2910-8894
Caly, Décio N.

Ching, Ting H.

Gonçalves, Antonio J.

Kowalski, Luis P.

Cernea, Cláudio R.
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Article History

Received: 29 January 2019

Accepted: 30 April 2019

First Online: 4 June 2019

Compliance with ethical standards

:

: The authors declare that they have no conflict of interest.

: The study protocol was approved by all four Ethics Committees of the participating institutions (protocols 228/03, 774/04, 605/04 and 291/04) and all procedures performed in study involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

: A formal consent was released by all four Ethics Committees due to the retrospective nature of the study.