15. Center for Disease Control and Prevention. Attention-Deficit / Hyperactivity Disorder (ADHD) - Symptoms and Diagnosis of ADHD. https://www.cdc.gov/ncbddd/adhd/diagnosis.html. Accessed September 3, 2019.

15. Center for Disease Control and Prevention. Attention-Deficit / Hyperactivity Disorder (ADHD) - Symptoms and Diagnosis of ADHD. https://www.cdc.gov/ncbddd/adhd/diagnosis.html. Accessed September 3, 2019.

15. Center for Disease Control and Prevention. Attention-Deficit / Hyperactivity Disorder (ADHD) - Symptoms and Diagnosis of ADHD. https://www.cdc.gov/ncbddd/adhd/diagnosis.html. Accessed September 3, 2019.