In previous project, the satisfactory level of our case management training course was high. All the trainees had the highest regard toward the professional quality of the content and the instructors (Chiu et al, 2013). One of the case managers served as research assistant in the previous project and will continue to work with us as interventionist upon funded. Investigator will conduct a three-year RCT involving repeated measures at four time points: baseline screening (T0), 4th month (the end of the intervention, T1), 6th month (post-treatment follow up, T2), 12th month (T3).