RT Journal A1 Aaronson DS, Odisho AY, Hills N, et al T1 Proton beam therapy and treatment for localized prostate cancer: If you build it, they will come JF Archives of Internal Medicine JO Archives of Internal Medicine YR 2012 FD February 13 VO 172 IS 3 SP 280 OP 283 DO 10.1001/archinternmed.2011.711 UL http://dx.doi.org/10.1001/archinternmed.2011.711 AB The number of treatment options for localized prostate cancer continues to expand, amidst growing concern regarding overdiagnosis and overtreatment of low-risk disease.1- 3 Treatment patterns, however, may be driven by availability of novel technologies rather than by clinical indications. We aimed to examine regional treatment choices of men diagnosed as having localized prostate cancer living inside or outside of a defined hospital referral region containing a proton beam cyclotron in California.