For citations:

Drobyazgin E.A., Chikinev Yu.V., Sudovykh I.E., Peshkova I.V. Endoscopic interventions in tumor of trachea. Grekov's Bulletin of Surgery. 2017;176(4):18-21. (In Russ.) https://doi.org/10.24884/0042-4625-2017-176-4-18-21