[1] Mem Sloan Kettering Canc Ctr, Dept Psychiat & Behav Sci, New York, NY 10021 USA
[2] Mem Sloan Kettering Canc Ctr, Dept Epidemiol & Biostat, New York, NY 10021 USA
[3] Univ Melbourne, St Vincents Hosp, Dept Psychiat, Parkville, Vic 3052, Australia
[4] Univ Melbourne, Ctr Pallat Care, Parkville, Vic 3052, Australia
[5] Monash Univ, Dept Epidemiol & Prevent Med, Melbourne, Vic 3004, Australia