For citations:
. Head and Neck Tumors (HNT). 2013;(4):46-47. (In Russ.) https://doi.org/10.17650/2222-1468-2013-0-4-46-47
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. Head and Neck Tumors (HNT). 2013;(4):46-47. (In Russ.) https://doi.org/10.17650/2222-1468-2013-0-4-46-47