What does PEKH stand for?

MLA style: "PEKH." Acronym Finder . 2013. AcronymFinder.com 23 May. 2013 http://www.acronymfinder.com/Pre_Existing-Know_How-(PEKH).html
Chicago style: Acronym Finder . S.v. "PEKH." Retrieved May 23 2013 from http://www.acronymfinder.com/Pre_Existing-Know_How-(PEKH).html
APA style: PEKH. (n.d.) Acronym Finder. (2013). Retrieved May 23 2013 from http://www.acronymfinder.com/Pre_Existing-Know_How-(PEKH).html

Pre-Existing Know-How

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