Microstructure of replacement chickens’ spleen after immunostimulant application Rezilya Asrutdinova, Rustem Mullahmetov, Lenar Rakhmatov, Nadezhda Kanalina and Salavat Garipov BIO Web Conf., 27 (2020) 00057 Published online: 25 November 2020 DOI: 10.1051/bioconf/20202700057