For citations:
Parshin V.S., Veselova A.A., Medvedev V.S., Ivanov S.A., Kaprin A.D. Ultrasound diagnosis of cervical levels II–IV lymph node metastasis in patients with first diagnosed papillary thyroid cancer. Head and Neck Tumors (HNT). 2019;9(4):17-23. (In Russ.) https://doi.org/10.17650/2222-1468-2019-9-4-17-23