Assertion: saxophone's work | /r/HasProperty | clarified by study
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text: Sax wrote to Liberman, and, receiving no reply, in October 2010 on the website of Why Gender Matters, Sax acknowledged that points in his book were "out-of-date or inaccurate" and that his work, which was initially published in 2005, has been clarified by studies published by third parties in 2007 and 2009.