[1] Calgary Reg Palliat & Hospice Care Serv, Calgary, AB, Canada
[2] Univ Calgary, Dept Family Med, Calgary, AB T2N 1N4, Canada
[3] Univ Calgary, Dept Oncol, Calgary, AB T2N 1N4, Canada
[4] Tom Baker Canc Clin, Calgary, AB, Canada
[5] Univ Calgary, Dept Clin Neurosci, Calgary, AB T2N 1N4, Canada
[6] Univ Calgary, Dept Med, Calgary, AB T2N 1N4, Canada