34db7d72____Norris_Cotton_Cancer_Center__hyperactivity_disorder__ADHD__Fact
[Myth] If a child has ADHD, he or she can always be diagnosed in the doctor's office. [Fact] 
A child may not always show symptoms of ADHD, especially in an unfamiliar setting. Evaluating a child from one office observation may result in failure to recognize or diagnose symptoms.
ADHD Myths and Facts | Health Encyclopedia | Norris Cotton Cancer Center