What indicators have you found helpful in screening cases that would be appropriate for possible peer review in radiation oncology?

We have written a summary of this issue as it pertains to IMRT, but the concepts would apply to other aspects of external beam RT. Please see Moran et al, in Practical Radiation Oncology July–September, 2011 Volume 1, Issue 3, Pages 190–195. Table 2 in that document is a nice summary of what we cons...