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A modified ischemia score was used to detect less severe levels of ischemia. Grading was as follow: leg autoamputation (0), leg necrosis (1), foot necrosis (2), two or more toes discoloration (3), one toe discoloration (4), two or more nails discoloration (5), one nail discoloration (6), no sign of necrosis/ischemia (7)
