Table 3 The 22 opioid-related terms used to collect the Google Trends data, January 1, 2005 to Dec 31, 2015.

From: Internet search and medicaid prescription drug data as predictors of opioid emergency department visits

Fentanyl

Narcotic

Opioid analgesics

Opioid side effects

Heroin

Non opioid

Opioid antagonist

Opioid withdrawal

Hydrocodone

Opiates

Opioid conversion

Oxycodone

Methadone

Opioid

Opioid definition

Suboxone

Morphine

Opioid abuse

Opioid medications

Symptoms

Tramadol

What is opioid

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