[1] Natl Univ Singapore, Yong Loo Lin Sch Med, NUHS Tower Block, 1E Kent Ridge Rd, Level 11, Singapore 119228, Singapore
[2] Natl Canc Ctr Singapore, Div Support & Palliat Care, 30 Hosp Blvd, Singapore 168583, Singapore
[3] Natl Canc Ctr Singapore, Div Canc Educ, 30 Hosp Blvd, Singapore 168583, Singapore
[4] Singapore Gen Hosp, Med Social Serv, Outram Rd, Singapore 169608, Singapore
[5] Natl Univ Singapore, Duke NUS Med Sch, 8 Coll Rd, Singapore 169857, Singapore
[6] Assisi Hosp, 832 Thomson Rd, Singapore 574627, Singapore
[7] Natl Canc Ctr Singapore, Div Med Oncol, 30 Hosp Blvd, Singapore 168583, Singapore
[8] Univ Liverpool, Palliat Care Inst Liverpool, Acad Palliat & End Life Care Ctr, 200 London Rd, Liverpool L3 9TA, England
[9] Natl Univ Singapore, Ctr Biomed Eth, Blk MD11,10 Med Dr,02-03, Singapore 117597, Singapore
[10] PalC Dover Pk Hosp, Palliat Care Ctr Excellence Res & Educ, 10 Jalan Tan Tock Seng, Singapore 308436, Singapore
[11] Univ Liverpool, Hlth Data Sci, Whelan Bldg,Brownlow Hill, Liverpool L69 3GB, England