For citations:
Savkina M.V., Krivykh M.A., Sayapina L.V., Obukhov Yu.I., Bondarev V.P. Botulinum toxin preparations: areas for improvement and issues of standardisation. Biological Products. Prevention, Diagnosis, Treatment. 2023;23(3):262-274. (In Russ.) https://doi.org/10.30895/2221-996X-2023-23-3-262-274