PT - JOURNAL ARTICLE ED - , TI - Atrial fibrillation? Watch the fiddleheads! DP - 1998 Jul 14 TA - Canadian Medical Association Journal PG - 15--15 VI - 159 IP - 1 4099 - http://www.cmaj.ca/content/159/1/15.3.short 4100 - http://www.cmaj.ca/content/159/1/15.3.full SO - CMAJ1998 Jul 14; 159