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Erectile Dysfunction	free resource	Genetic Alliance	https://www.diseaseinfosearch.org/result/9682
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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/22248153
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/jsm/article-lookup/doi/10.1111/j.1743-6109.2011.02629.x