Diana Pérez-Etcheverry et al. 2021. Research on Semiquantification of Lethal Toxin at the Bottom of Reactors for Clostridium sordellii Culture. Recent Progress in Microbiology and Biotechnology Vol. 5. (May 2021), 117–129. DOI:https://doi.org/10.9734/bpi/rpmb/v5/1923F.