Columbia subject headings:
Medication abuse--United States.
Opioid abuse--United States.
Oxycodone abuse--United States.
Oxycodone.
Harvard subject headings:
Medication abuse--United States
Opioid abuse--United States.
Oxycodone abuse--United States.
Oxycodone.
Princeton subject headings:
Medication abuse--United States.
Opioid abuse--United States.
Oxycodone abuse--United States.
Oxycodone.