[Modification of a tube for drainage of the maxillary sinus].
D004322:Drainage / Q000295:instrumentation*; D006801:Humans; D008443:Maxillary Sinus / Q000601:surgery*; D012852:Sinusitis / Q000601:surgery*
Modifikatsiia trubochki dlia drenirovaniia verkhnecheliustnoĭ pazukhi.