Name	Info	Provider	Link
Hay Fever	free resource	MedlinePlus Health Information	https://medlineplus.gov/hayfever.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=28196255.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/28196255/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/28196255
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/28196255
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:28196255
	free resource	scite Smart Citations	https://scite.ai/reports/28196255
	subscription/membership/fee required	Silverchair Information Systems	https://jamanetwork.com/journals/jama/fullarticle/10.1001/jama.2016.21040
	free resource	Spiral, Imperial College Digital Repository	http://hdl.handle.net/10044/1/44531