[1] Catholic Univ Pusan, Dept Nursing, Maryknoll Room 126,Oryundaero 57, Busan 46252, South Korea
[2] Kosin Univ, Gospel Hosp, Dept Internal Med, Busan, South Korea
[3] Catholic Univ Pusan, Dept Aging & Social Work, Busan 3, South Korea
[4] Catholic Univ Pusan, Dept Ind Acad Cooperat Fdn, Busan, South Korea
[5] Hosp Palliat Care Ctr Busan Metropolitan City, Dept Adm Team, Busan, South Korea
[6] Hosp Palliat Care Ctr Busan Metropolitan City, Dept Social Welf Team, Busan, South Korea