- Availability of patient for follow-up and quality of life (QoL) assessments. Patients must be accessible for treatment and follow-up. Investigators must assure themselves that patients registered on this trial will be available for complete documentation of the treatment, toxicity and follow-up. Comparison of quality of life is an end-point of this study. Patients must have completed the pre-randomization quality of life assessment and be willing to complete future assessments. The only exceptions will be patients who are unable to read english or french. Patients on study are expected to complete all the quality of life assessments but, should this not prove possible, they will be retained in the study for all other analyses.