Background: Opiate substitution treatment (OST) is the main treatment for people addicted to heroin and other opioid drugs. However. there is limited information on how the delivery of this treatment affects mortality risk. Objectives: To investigate the associations of mortality risk with periods during treatment and following cessation of treatment. https://www.pomyslnaszycie.com/white-and-green-bulletin-board-border-simply-boho-schoolgirl-style-on-sale/