PT - JOURNAL ARTICLE AU - Wm. Jeptha Davenport TI - Psychedelic and nonpsychedelic LSD and psilocybin for cluster headache AID - 10.1503/cmaj.1150082 DP - 2016 Feb 16 TA - Canadian Medical Association Journal PG - 217--217 VI - 188 IP - 3 4099 - http://www.cmaj.ca/content/188/3/217.3.short 4100 - http://www.cmaj.ca/content/188/3/217.3.full SO - CMAJ2016 Feb 16; 188