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Visible image of (A) plantar ulcer (circled) developed on the foot of an affected diabetes subject and of (B) the same foot without ulceration 116 days earlier along with target centered on the location of the affected area as used in Method 2. Target and adjacent regions are not drawn to scale. Corresponding OXY and DEOXY maps of (C) the formed plantar ulcer and (D) of the same foot before ulceration.31
