B D ays postH C T Photons /sec x 10 8 0 2 4 6 8 10 12 14 16 18 20 22 24 26 0.0 0.5 1.0 1.5 2.0 2.5 M HC m ajormismatch M iHAg m ismatch Syngeneic control Total Body A Days after HCT MHC major mismatch MiHAg mismatch Syngeneic control Color Scale Min = 3x10 3 Max = 3x10 5 0. 5 1. 0 1. 5 2. 0 3. 0 2. 5 x 10 5 p / s / cm 2 / sr 4 2 3 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 dditional file 1A, B GiT Skin D ays postH C T Photons/s/cm 2 x 10 5 0 2 4 6 8 10 12 14 16 18 20 22 24 26 0.0 2.0 4.0 6.0 8.0 D ays postH C T Photons/s/cm 2 x 10 5 0 2 4 6 8 10 12 14 16 18 20 22 24 26 0.0 2.0 4.0 6.0 8.0 * Death due to acute GvHD