Name	Info	Provider	Link
XPC	free resource	BioCyc	https://biocyc.org/gene?orgid=HUMAN&id=HS08009
	free resource	Coriell Cell Repositories	http://ccr.coriell.org/Sections/Search/PubSamples.aspx?PgId=516&id=12177305&lvl=0
	free resource	GlyGen glycoinformatics resource	https://glygen.org/publication/PubMed/12177305/
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=12177305.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/12177305/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/12177305
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/nar/article-lookup/doi/10.1093/nar/gkf469