New light on the maturing out hypothesis in opioid dependence.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009293:Opioid-Related Disorders / Q000523:psychology*; D011582:Psychological Theory; D013997:Time Factors