Analgesics, Opioid 1 Animals 1 BOTSA Naltrexone 1 Narcotic Antagonists 1 Object Attachment 1 Opioid-Related Disorders 1 Social Isolation 1 addiction 1 animal 1 naltrexone 1 narcotic analgesic agent 1 narcotic antagonist 1 object relation 1 opiate addiction 1 opioid 1 social capital 1 social isolation 1