 a.Spinal cord previously irradiated 80GyBiological equivalent dose with αβ2, b.Brachial plexus previously irradiated to 100GyBiological equivalent dose with αβ2, c.Small intestine, large intestine, or stomach previously irradiated to 90Gy Biological equivalent dose with αβ2, d.Whole lung previously irradiated with prior V20Gy 30 delivered in 3 Gyfraction, e.Primary tumor irradiated with SBRT, f.Metastasis irradiated with SBRT. 