Name	Info	Provider	Link
	free resource	Public Library of Science	https://dx.plos.org/10.1371/journal.pone.0021189
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21701595/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/21701595
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-CD4-1
See the articles recommended by the Faculty of more than 8,000 leading experts in Biology and Medicine.	subscription/membership/fee required	H1 Connect	https://facultyopinions.com/pubmed/21701595