PT - JOURNAL ARTICLE AU - H. Fisher TI - Migraine research methods DP - 1997 Oct 15 TA - Canadian Medical Association Journal PG - 1015--1016 VI - 157 IP - 8 4099 - http://www.cmaj.ca/content/157/8/1015.4.short 4100 - http://www.cmaj.ca/content/157/8/1015.4.full SO - CMAJ1997 Oct 15; 157