PT - JOURNAL ARTICLE AU - Nancy Benac TI - US Food and Drug Administration signals crackdown on caffeinated alcohol drinks AID - 10.1503/cmaj.109-3775 DP - 2010 Dec 20 TA - Canadian Medical Association Journal 4099 - http://www.cmaj.ca/content/early/2010/12/20/cmaj.109-3775.short 4100 - http://www.cmaj.ca/content/early/2010/12/20/cmaj.109-3775.full