Name	Info	Provider	Link
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	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=31403696.ui
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/31403696
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/sleep/article-lookup/doi/10.1093/sleep/zsz188