TY - JOUR T1 - Link between porphyria and fasting uncovered JF - Canadian Medical Association Journal JO - CMAJ SP - 864 LP - 864-a DO - 10.1503/cmaj.051140 VL - 173 IS - 8 AU - David Secko Y1 - 2005/10/11 UR - http://www.cmaj.ca/content/173/8/864.2.abstract ER -