[1] Monash Univ Australia, Palliat Care Res Team, Sch Nursing & Midwifery, Frankston, Vic 3199, Australia
[2] Natl Univ Singapore, Yong Loo Lin Sch Med, Ctr Biomed Eth, Singapore 117595, Singapore
[3] Univ Lancaster, Int Observ End Life Care, Lancaster, Lancs, England
[4] Monash Univ Malaysia, Tan Sri Jeffrey Cheah Sch Med, Selangor Darul Ehsan, Malaysia
[5] Natl Univ Singapore, Ang Mo Kio Thye Hua Kwan Hosp, Singapore 117548, Singapore