[1] McMaster Univ, Dept Oncol, Hamilton, ON, Canada
[2] McMaster Univ, Dept Family Med, Hamilton, ON L8S 4L8, Canada
[3] Escarpment Canc Res Inst, Hamilton, ON, Canada
[4] Canc Care Ontario, Toronto, ON, Canada
[5] Wilfrid Laurier Univ, Dept Kinesiol, Waterloo, ON N2L 3C5, Canada
[6] Wilfrid Laurier Univ, Dept Phys Educ & Hlth Sci, Waterloo, ON N2L 3C5, Canada