Task: Answer Verification
Input (English): Question: Are the determination of total testosterone and free testosterone ( RIA ) applicable to the evaluation of gonadal function in HIV-infected males?
Answer: TT and FT (RIA) are not useful in the differential diagnosis of hypogonadism in HIV-infected males. There is a significant prevalence of hypogonadism in HIV-infected males, with the patient's age and duration of the disease being the only identifiable risk factors.
Output (English): no