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DNA damage distribution in 3D reconstructed normal human respiratory epithelia (EpiAirway) exposed to different light sources. Immunohistochemistry using monoclonal antibodies specific for CPDs is shown immediately after irradiation with a broad-band UVC/UVB lamp used for RPT (Allux Medical) (C), a narrow-band Philips TL01 UVB lamp (B), a narrow-band UVC germicidal lamp (A) and the broadband UVC/UVB lamp shown in Panel A from which the UVB component had been removed (D).
