PT - JOURNAL ARTICLE AU - Shelley Martin TI - Prevalence of migraine headache in Canada DP - 2001 May 15 TA - Canadian Medical Association Journal PG - 1481--1481-a VI - 164 IP - 10 4099 - http://www.cmaj.ca/content/164/10/1481.2.short 4100 - http://www.cmaj.ca/content/164/10/1481.2.full SO - CMAJ2001 May 15; 164