Funding for this research was provided by:
Russian Science Foundation (21-73-20105)
Received: 16 May 2021
Revised: 22 June 2021
Accepted: 25 June 2021
First Online: 7 July 2021
: All of the experiments with amphibians were carried out according to the rules published in Appendix A of the European Convention for the Protection of Vertebrate Animals Used for Experimental and Other Scientific Purposes (ETS No. 123), accepted in Strasbourg, 15 June 2006, and according to the Russian law GOST33219–2014, developed on the basis of the convention mentioned above by the Euro-Asian Council for Standardization, Metrology and Certification (EASC).
: The authors declare no competing interests.