1. Department of Vascular Surgery, Xiamen Branch, Zhongshan Hospital, Fudan University, Xiamen, Fujian 361015, China
2. Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
3. Department of Plastic surgery, Plastic Surgery Hospital, Peking Union Medical College, Beijing 100144, China
4. Department of Division of Vascular and Endovascular Surgery, Seattle VA Medical Center, University of Washington, Seattle, WA 98018, USA