LINKS
http://www.consumerreports.org/cro/consumer-reports-magazine-january-2012/fish-oil-pills-vs-claims/index.htm
http://www.epa.gov/epawaste/hazard/tsd/pcbs/pubs/about.htm
http://www.epa.gov/epawaste/hazard/tsd/pcbs/pubs/effects.htm
http://www.epa.gov/epawaste/hazard/tsd/pcbs/pubs/congeners.htm
http://www.epa.gov/epawaste/hazard/tsd/pcbs/pubs/congenertable.pdf