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Citations: - Campbell, Denis. "Scientists Study Possible Health Benefits of LSD and Ecstasy." The Guardian. The Guardian, 23 Oct. 2009. Web. 08 Nov. 2013. -"Cluster Headache." Wikipedia. Wikimedia Foundation, 11 Aug. 2013. Web. 05 Nov. 2013. - Erowid. "Erowid Survey Vault : LSD Survey 8 "How Has LSD Affected Your Life?" Comments." Erowid Survey Vault : LSD Survey 8 "How Has LSD Affected Your Life?" Comments. N.p., Jan.-Feb. 2003. Web. 08 Nov. 2013. - Krebs TS, Johansen P-Ø (2013) Psychedelics and Mental Health: A Population Study. PLoS ONE 8(8): e63972. doi:10.1371/journal.pone.0063972 - "LSD History." History of LSD. Narconon International, 03 Oct. 2010. Web. 08 Nov. 2013. -" 'LSD Was a Positive Life-changing Experience for Me ': Steve Jobs Opened up to the Pentagon about His Drug Habits in Secret Files." Mail Online. Daily Mail Reporter, 13 June 2012. Web. 06 Nov. 2013. - Orange, Richard. "LSD Is Good for You, Say Norway Researchers." - The Local. The Local, 22 Aug. 2013. Web. 08 Nov. 2013.