_:n449ed26b955348dcbcb72e44cc053db0xb1
<http://schema.org/isAccessibleForFree>
"true"^^<http://www.w3.org/2001/XMLSchema#boolean>
<https://bmcgenomics.biomedcentral.com/articles/10.1186/1471-2164-9-S1-S2/figures/3>