1. Department of Social Welfare, Ewha Womans University, Seoul 03760, Republic of Korea
2. Department of Social Welfare, Institute of Social Welfare, Kongju National University, Gongju-si 32588, Republic of Korea
3. Suzanne Dworak-Peck School of Social Work, University of Southern California, Los Angeles, CA 90007, USA
4. Brown School, Washington University in St. Louis, St. Louis, MO 63130, USA