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Kinetics of UVR-induced changes (Mean ± S EM) of heat pain threshold (A), erythema (B) and skin temperature (C) for nonirradiated skin (0 MED) and increasing levels of UVR (1–3 MED).
Abbreviations: UVR, ultraviolet B radiation; SEM, standard error in the mean; MED, minimal erythema dose.
