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Representative tracings from one subject demonstrating the blood flow response [percent maximal cutaneous vascular conductance (%CVCmax)] during the local heating protocol in the control (lactated Ringer’s) sites of the ultraviolet B (UVB)-exposed (closed circles) and nonexposed (open circles) arms. The arrow indicates the percentage decrease with nitric oxide synthase (NOS) inhibition [l-NG-nitroarginine methyl ester (l-NAME infusion)].
