TY - JOUR T1 - The dietary supplement 5-hydroxytryptophan and urinary 5-hydroxyindole acetic acid JF - Canadian Medical Association Journal JO - CMAJ SP - 993 LP - 993 DO - 10.1503/cmaj.071569 VL - 178 IS - 8 AU - Roy M. Preshaw MD AU - Daniel Leavitt MD AU - Gordon Hoag, MD PhD Y1 - 2008/04/08 UR - http://www.cmaj.ca/content/178/8/993.abstract ER -