Lead Toxicity due to Ingestion of Lead-Contaminated Opium in a Patient Presenting with Motor Neuropathy and Upper Limb Paresis: A case report Journal title: Sultan Qaboos University Medical Journal Authors: Seyed M. M. Mirzaei, Ayob Akbari, Omid Mehrpour, Nasim Zamani Subject(s): Medicine, Biochemistry, Biomedicine