%0 Journal Article %T Circadian melatonin profile in opium and amphetamine dependent patients: A preliminary study %A Amir Kiani %A Habibolah Khazaie %A Hamid Reza Ahmadi %A Mohammad Rasoul Ghadami %J Archive of "Neurobiology of Sleep and Circadian Rhythms". %D 2019 %R 10.1016/j.nbscr.2019.100046 %K Amphetamine %K Opium %K Melatonin Amphetamine %K Opium %K Melatonin %K Sleep disturbance %K Circadian rhythm %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6710474/