Particle Therapy 2017

Reducing K2 risk…

MHG, 1973-2001

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Conven3onal P tehno.

P:558 matched with XR:558 (SEER)

Med FUp: 6.7 Y K2 XR: 42 (7.5%) K2 P: 29 (5.2%)

Adjusted risk: .52 (p .009)

Children: no K2

Chung CS et al, IJROBP, 2012