FACTORS ASSOCIATED WITH ILLICIT INJECTION DRUG USE AMONG METHADONE MAINTENANCE TREATMENT PATIENTS IN INDONESIA: Irvan Afriandi1,2, Sukhontha Kongsin1, Sukhum Jiamton3, Bhusita Intaraprasong4, and Pandu Riono5. SEATROPH 2021, 51 (1), 26-35.