[1] Nanyang Technol Univ, Sch Social Sci, Psychol, 14 Nanyang Dr,HSS 04-03, Singapore 637332, Singapore
[2] Nanyang Technol Univ, Lee Kong Chian Sch Med, Ctr Populat Hlth Sci, 11 Mandalay Rd,Level 18,Clin Sci Bldg, Singapore 308232, Singapore
[3] HCA Hosp Care, 10 Jalan Tan Tock Seng, Singapore 308437, Singapore
[4] Dover Pk Hosp, 10 Jalan Tan Tock Seng, Singapore 308436, Singapore
[5] Natl Canc Ctr Singapore, Dept Psychosocial Oncol & Patient Support, 11 Hosp Dr, Singapore 169610, Singapore
[6] Univ Memphis, Dept Psychol, Room 347,202 Psychol Bldg, Memphis, TN 38152 USA
[7] CancerCare Manitoba, Manitoba Palliat Care Res Unit, 3017-675 McDermot Ave, Winnipeg, MB R3E 0V9, Canada