For citations:
Monakov V.A., Monakov D.V., Ogurtsov D.D., Galteeva D.A., Zimnurova A.M. Experience in the use of osteoplastic material Kollapan-L for perforation of the maxillary sinus. Medical alphabet. 2023;(12):40-43. (In Russ.) https://doi.org/10.33667/2078-5631-2023-12-40-43