Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0032-5791(19)31891-7
Pulmonary Hypertension	free resource	MedlinePlus Health Information	https://medlineplus.gov/pulmonaryhypertension.html
	free resource	scite Smart Citations	https://scite.ai/reports/27433016
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/ps/article-lookup/doi/10.3382/ps/pew227