http://www.imminst.org/forum/index.php?showtopic=36691
http://www.phosphatidylserine.net/
http://www.pdrhealth.com/home/home.aspx
http://www.supplementwatch.com/
http://lpi.oregonstate.edu/infocenter/
http://web.indstate.edu/thcme/mwking/home.html
http://www.bulknutrition.com/?articles=1
http://www.imminst.org/forum/Nootropic-Resources-t19238.html
http://www.gjpsy.uni-goettingen.de/gjp-article-keppel.htm
http://www.imminst.org/forum/index.php?s=&act=ST&f=199&t=8664
http://www.tga.gov.au/adr/aadrb/aadr0602.htm#1
http://www.nickbostrom.com/views/science.pdf
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https://www.researchgate.net/profile/Caroline_Menard/publication/275409420_Signaling_Pathways_Relevant_to_Cognition-Enhancing_Drug_Targets/links/5575ef0908ae7521586c2914.pdf
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