<qa>  What is the ALT?- current liver disease or dysfunction, assessed by physical examination and medical history; and hepatitis C, chronic hepatitis B, or other current liver disease or dysfunction as assessed by physical examination and medical history or as reflected in blood levels more than 5 times the upper limit of normal in any of the following: aspartate transaminase AST, alanine transaminase ALT, or gamma-glutamyltransferase GGT 