For citations:
Polyakov A.P., Vasileva E.I., Polyakov А.А. Modern methods of treatment of locally-advanced and recurrent basal cell carcinoma of the head and neck with using signal pathway inhibitor Hedgehog: сlinical cases. Head and Neck Tumors (HNT). 2019;9(1):20-27. (In Russ.) https://doi.org/10.17650/2222-1468-2019-9-1-20-27