[1] Univ Saskatchewan, Coll Med, Saskatoon, SK, Canada
[2] Univ Saskatchewan, Dept Surg, Saskatoon, SK, Canada
[3] Allan Blair Canc Ctr, Regina, SK, Canada
[4] Saskatchewan Canc Agcy, Saskatoon, SK, Canada
[5] Univ Saskatchewan, Saskatoon, SK, Canada