Letters to the Editor.

Responds to commentary made by J. Kearsley concerning the radiotherapy utilization in New South Wales from 1996 to 1998, featured in the 2001 issue of the periodical 'Australasian Radiology.' Basis for resource allocation in radiation oncology; Development of a utilization rate using cancer incidence and evidence-based medicine to determine the proportion requiring treatment; Number of patients per radiation oncologist.