[1] Univ British Columbia, Dept Hlth Care & Epidemiol, Vancouver, BC V6T 1Z3, Canada
[2] British Columbia Canc Agcy, Patient & Family Counseling Serv, Vancouver, BC V5Z 4E6, Canada
[3] British Columbia Canc Agcy, Qual Life Program, Vancouver, BC V5Z 4E6, Canada
[4] Univ British Columbia, Vancouver, BC V5Z 1M9, Canada