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. 2018 May 29;8:192. doi: 10.3389/fonc.2018.00192

Figure 4.

Figure 4

Collection of measured relative biological effectiveness (RBE) data for the induction of MN per BN cell after exposure to protons, α-particles, or energetic heavy ions. RBE was calculated as the ratio of the initial slope of the dose-response curves for ions and photons as measured by the same authors. Different symbols refer to different cell types. HaCaT = spontaneously immortalized adult human keratinocytes (63); NHPK = normal human neonatal epidermal keratinocytes (63); HUVEC = human umbilical vein endothelial cells (67); HNDF = human neonatal dermal fibroblasts (59); FRTL-5 = Fischer rat thyroid cell line (60); PBL = human peripheral blood lymphocytes (61); SCCVIII = mouse squamous cell carcinoma (64); V79 =Chinese hamster fibroblasts (62); Cl-1 = Chinese hamster fibroblasts (46). The blue line is a guide for the eye.