For citations:
Mudunov A., Ahundov A., Bolotin M., Braunschweig T. An update on head and neck squamous cell carcinoma in respect to classification and systemic therapy. Extended review. Head and Neck Tumors (HNT). 2018;8(1):48-55. https://doi.org/10.17650/2222-1468-2018-8-1-48-55