Koos Boeve

81 SLNB in oral cancer after previous neck treatment SUPPLEMENTARY DATA Supplementary data 1 is available on the following pages. Supplementary data 2. Locations of the SLNs divided by history of the neck. **_**: in total 12 removed LNs in one conglomerate (Figure B, ipsilateral level IV). (****): four LNs removed without activity on gamma probe (figure E, contralateral level I) Supplementary data 2 is in a higher resolution available at: https://www.sciencedirect.com/science/ article/pii/S1368837519301423?via%3Dihub