Name	Info	Provider	Link
	subscription/membership/fee required	Nature Publishing Group	https://doi.org/10.1038/s41431-018-0295-z
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/30679814/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/30679814
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-PGR-1
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-1260
Full text from	free resource	Research Portal of the University of Turku	https://urn.fi/URN:NBN:fi-fe2021042821549