@CNN: Researchers have identified another gene that could influence the risk of opioid dependence, a new study shows https://t.co/zHpZYbMjva https://t.co/0HUJ4lDVsq

@CNN: Researchers have identified another gene that could influence the risk of opioid dependence, a new study shows https://t.co/zHpZYbMjva https://t.co/0HUJ4lDVsq