Sufieva, D. A.
Razenkova, V. A.
Antipova, M. V.
Korzhevskii, D. E.
Article History
Received: 18 January 2020
Revised: 9 February 2020
Accepted: 12 February 2020
First Online: 17 June 2020
COMPLIANCE WITH ETHICAL STANDARDS
: Conflict of interest. The authors declare that they have no conflict of interest. Statement of the welfare of animals. The animals were housed and sacrificed according to the international guidelines of the Declaration of Helsinki on the humane treatment of animals and the “Rules for performance of studies using experimental animals” (Attachment to the Order of the Ministry of Healthcare of the Soviet Union no. 755, August 12, 1977).
: D.A. Sufieva performed sampling, tissue processing and embedding into paraffin blocks, staining the preparations, photographing, analysis of preparations, and writing the text of the article. V.A. Razenkova performed photographing the preparations, cell counting, statistical analysis of the obtained preparations, and work with figures. M.V. Antipova cut the material and counted cells. D.E. Korzhevskii designed the experiment and edited the manuscript.