“…Opioid dependence, most commonly manifested as heroin dependence, remains a serious public health issue in China and other countries in the world (Boyuan, Yang, Ke, Xueyong, & Sheng, ; Doosti, Dashti, Tabatabai, & Hosseinzadeh, ; Li & Li, ; Ling et al, ; Ling et al, ; Marienfeld et al, ; Marsch et al, ; Mattick, Breen, Kimber, & Davoli, ; Mokri, Chawarski, Taherinakhost, & Schottenfeld, ; Rosenthal et al, ). In 2015, 2.3 million people in China were registered drug addicts, 40% of whom were heroin users (China National Narcotic Control Committee, ).…”