![](https://opioidmisusestudy.wustl.edu/files/2019/12/dna4-1024x169.jpg)
Your participation will help us identify genes that protect people from opioid addiction.
We need participants who:
- Have misused opioids (at least once)
- Are African American or white (non-Hispanic)
- Are age 18 or older
- Live in the United States or Canada
Participation in the study involves:
- A confidential 1-3 hour telephone interview
- Providing a saliva sample for DNA