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	subscription/membership/fee required	Atypon	https://ascopubs.org/doi/10.1200/JCO.2016.71.7439?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
Breast Cancer	free resource	MedlinePlus Health Information	https://medlineplus.gov/breastcancer.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=28661758.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/28661758/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/28661758
	free resource	scite Smart Citations	https://scite.ai/reports/28661758
Full text from	free resource	White Rose Research Online	https://eprints.whiterose.ac.uk/115528/