This study aims to provide a discussion on pain management challenges in opium addict patients. Pain and addiction are complicated with each other. and their managing requires more clinical consideration. The number of opioid abusers has grown rapidly through the Iranian population. https://echobookmarks.com/story19493251/enhanced-perception-for-autonomous-vehicles-at-obstructed-intersections-an-implementation-of-vehicle-to-infrastructure-v2i-collaboration