For citations:

Filonenko E.V., Sokolov V.V., Menenkov V.D., Krylova G.P. Photodynamic therapy for early cancer of hollow organs. Photodynamic therapy and photodyagnosis. 2015;4(1):22-25. (In Russ.) https://doi.org/10.24931/2413-9432-2015-4-1-22-25