Assertion: glucosamine's ingredient | /r/CapableOf | ignore self-evident omissions
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text: A 2008–2009 review of all known studies of glucosamine supplements for horses, for example, found that almost all studies had failed to meet usual standards and were fatally compromised by basic errors in their execution, including failure to test whether active ingredients were as stated, lack of adequate (or any) control groups or baseline measurements, very small sample sizes, and ignoring prior research or self-evident omissions.