It is important to continuously update clinical practice guidelines for diseases like attention deficit/hyperactivity disorder (ADHD)...“It’s important for people to recognize that guidelines aren’t meant to cover 100% of patients,” Chan said. “If they applied to maybe 75% that’s great and that totally depends on how much evidence is out there to support a more detailed guide to treatment.” Chan also discussed how difficult the pandemic has been for this patient population, particularly those who need routine.