Aghabiklooei, Abbas, Shahin Shadnia, Hossein Hassanian-Moghaddam, and Nasim Zamani. 2013. “Acute Respiratory Distress Syndrome Caused by Methadone Syrup”. Archives of Industrial Hygiene and Toxicology 64 (3). https://doi.org/10.2478/10004-1254-64-2013-2347.