<style face="normal" font="default" size="100%">Only modest long-term opioid dose escalation occurs over time in chronic nonmalignant pain management</style>

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31<style face="normal" font="default" size="100%">Only modest long-term opioid dose escalation occurs over time in chronic nonmalignant pain management</style><style face="normal" font="default" size="100%">Only modest long-term opioid dose escalation occurs over time in chronic nonmalignant pain management</style>