PT - JOURNAL ARTICLE AU - Celia M. Ross TI - Fish Oil versus Cod Liver Oil: Is Vitamin D a Reason to Go Back to the Future AID - 10.3122/jabfm.18.5.445-b DP - 2005 Sep 01 TA - The Journal of the American Board of Family Practice PG - 445--446 VI - 18 IP - 5 4099 - http://www.jabfm.org/content/18/5/445.1.short 4100 - http://www.jabfm.org/content/18/5/445.1.full SO - J Am Board Fam Med2005 Sep 01; 18