PT - JOURNAL ARTICLE AU - Matthew Smith TI - “Witchcraft, a fad or a racket?” Food allergy in historical perspective AID - 10.1503/cmaj.150575 DP - 2016 Jan 05 TA - Canadian Medical Association Journal PG - 64--65 VI - 188 IP - 1 4099 - http://www.cmaj.ca/content/188/1/64.short 4100 - http://www.cmaj.ca/content/188/1/64.full SO - CMAJ2016 Jan 05; 188