1. Department of Vascular Surgery; Shanghai Ninth People's Hospital; Shanghai JiaoTong University School of Medicine; Shanghai 200011 China
2. State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050 China
3. Department of Vascular Surgery; Xuzhou Central Hospital; Xuzhou 221009 Jiangsu China
4. Christopher Ingold Laboratory; Department of Chemistry; University College London; London WC1H 0AJ UK
5. Department of Orthopaedics; Shanghai First People's Hospital; Shanghai Jiaotong University; Shanghai 200080 China