A. Aghabiklooei, S. Shadnia, H. Hassanian-Moghaddam, and N. Zamani, “Acute Respiratory Distress Syndrome Caused by Methadone Syrup”, Arh Hig Rada Toksikol, vol. 64, no. 3, Sep. 2013, doi: 10.2478/10004-1254-64-2013-2347.