Special Emphasis on the Opioid/Substance Abuse Crisis
AbstractSince prehistoric times, humankind has probably discovered and used various substances for their medicinal and psychological effects. A plethora of such substances are now known and used. A yin and yang relationship between the beneficial versus the harmful effects exists for many of these substances. Tremendous benefits can result from proper medicinal use of many substances; tremendous harms can result from misuse or abuse.
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