Comparison of various in vitro model systems of the metabolism of synthetic doping peptides: Proteolytic enzymes, human blood serum, liver and kidney microsomes and liver S9 fraction. (opens PubMed)
Zvereva I, Semenistaya E, Krotov G et al. · Journal of proteomics
A observational study indexed with human and animal subjects, published 2016 in Journal of proteomics.
Indexed as human research that isn't a randomised controlled trial.