Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0168-9525(21)00056-1
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S0168-9525(21)00056-1
Phosphodiesterases, 3',5'-cyclic nucleotide (PDEs) - overview and references	free resource	Guide to Pharmacology	https://www.guidetopharmacology.org/GRAC/FamilyDisplayForward?familyId=260
	free resource	scite Smart Citations	https://scite.ai/reports/33832760