Pettitte admits using HGH to recover from an elbow injury in 2002
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Yankees pitcher Pettitte announces retirement – The Denver Post
Andy Pettitte – Society for American Baseball Research
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From the Archives - Covered - Sports Spectrum
Pettitte Admits He Used H.G.H. 'for Two Days' - The New York Times
Andy Pettitte, Baseball Wiki
Mel Antonen: Voters say Andy Pettitte comes up short by Hall of