Fig. 1. Major amputation-free survival rates for diabetic foot wound (DFW). (A) Kaplan-Meier survival curves howing major amputation-free survival rate for DFW; DFW patients are divided into two groups as diabetic foot ulcer and diabetic foot gangrene. (B) Kaplan-Meier survival curves demonstrating major amputation-free survival rate in DFW with and without peripheral arterial occlusive disease (PAOD).