Animals 1 Article 1 Bagg albino mouse 1 Biomarkers, Tumor 1 CCR7 1 CCR7 protein, human 1 Cell Hypoxia 1 Cell Line, Tumor 1 Female 1 HIF-1α 1 Head and Neck Neoplasms 1 Head and neck cancer 1 Humans 1 Hypoxia 1 Hypoxia-Inducible Factor 1, alpha Subunit 1 Mice 1 Mice, Inbred BALB C 1 Mice, Nude 1 OSC-19 cell line 1 Receptors, CCR7 1 Tumour grade Tumour stage 1 animal 1 animal experiment 1 animal model 1 cancer cell culture 1 cell hypoxia 1 chemokine receptor CCR7 1 controlled study 1 female 1