Bovine fetal tissue extracts as an alternative to fetal serum for in vitro reproduction of virusesRustam Y. Gilmutdinov, Albert K. Galiullin, Gennady N. Spiridonov and Pavel V. SovronovBIO Web Conf., 27 (2020) 00044DOI: https://doi.org/10.1051/bioconf/20202700044