HFL Sport Science Research
HFL and Cambridge Commodities Ltd.'s Complete Raw Material Survey: Comparative incidence of the presence of banned substances in raw ingredients/materials sourced from global suppliers — summary of findings
HFL's 2007 Survey of US Products: 25% were contaminated with steroids and 11% were contaminated with stimulants
HFL's 2008 Survey of UK Products: 1 in 10 supplements may be contaminated
Low levels of nandrolone contamination in supplements - how big a risk to athletes?
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Supplements and Banned Substance Contamination
