Task: Answer Verification
Input (English): Question: Do voriconazole plasma concentrations in immunocompromised pediatric patients vary by CYP2C19 diplotypes?
Answer: Younger age and the presence of CYP2C19 gain-of-function alleles were associated with subtherapeutic voriconazole concentrations. Starting doses based on age and CYP2C19 status could increase the number of patients achieving therapeutic voriconazole exposure.
Output (English): yes