Tehran University of Medical Sciences Archives of Anesthesiology and Critical Care 2423-5849 6 3 2020 08 18 Malfunction of an Anesthesia Machine with Decoupling Valve 146 147 EN Ali Shahriari Department of Anesthesiology, Roozbeh Hospital, Tehran University of Medical Sciences, Tehran, Iran. Javad Rahmati Department of Aesthetic and Plastic Surgery, Razi Hospital; Tehran University of Medical Sciences, Tehran, Iran. 2020 05 05 2020 06 13  No Abstract No Abstract No Abstract No Abstract   https://aacc.tums.ac.ir/index.php/aacc/article/view/290 https://aacc.tums.ac.ir/index.php/aacc/article/download/290/488