Letters to the EditorIncreased Consumption of Crystal (Methamphetamine) During the COVID-19 OutbreakNaeim, Mahdi MSc; Rezaeisharif, Ali PhD Author Information Department of Counseling, University of Mohaghegh Ardabili, Ardabil, Iran The authors declare no conflict of interest. Addictive Disorders & Their Treatment 20(4):p 593-594, December 2021. | DOI: 10.1097/ADT.0000000000000250 Buy Metrics Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.