Andy Pettitte: Andy Pettitte's 2007 take on PED use: I tried HGH. Though it was not against baseball rules, I was not comfortable with what I was doing
Pettitte admits to use of HGH
Pettitte says he used HGH supplied by father in 2004 - ESPN
Andy Pettitte Admits to Using Human Growth Hormone (HGH)
First Person: Pettitte Apologizes for HGH Use
Andy Pettitte recalls Roger Clemens conversation about HGH - CBS News
Andy Pettitte Admits to Using Human Growth Hormone (HGH)
Andy Pettitte: Andy Pettitte's 2007 take on PED use: I tried HGH. Though it was not against baseball rules, I was not comfortable with what I was doing
Andy Pettitte Admits to Using Human Growth Hormone (HGH)
Andy Pettitte Testifies That Roger Clemens Said He Used H.G.H. - The New York Times
Pettitte admits to use of HGH
Benefit of the Doubt: Pettitte's HGH Admission Should Be No More than Footnote to a Great Career « The Captain's Blog
Pettitte faces media, talks about HGH use
First Person: Pettitte Apologizes for HGH Use