School of Computing Science, Faculty of Applied Sciences, Simon Fraser University, Burnaby BC, Canada.|School of Computing Science, Faculty of Applied Sciences, Simon Fraser University, Burnaby BC, Canada.|Vancouver Prostate Centre, Vancouver BC, Canada.|Vancouver Prostate Centre, Vancouver BC, Canada.|Vancouver Prostate Centre, Vancouver BC, Canada.|Vancouver Prostate Centre, Vancouver BC, Canada.|Vancouver Prostate Centre, Vancouver BC, Canada.|Department of Mathematics, Simon Fraser University, Burnaby BC, Canada.|Vancouver Prostate Centre, Vancouver BC, Canada.