**A Preliminary In Vivo Study on the Histocompatibility of Silk Fibroin**

Lu Yan1, Zhao Xia1, Shao Zhengzhong2, Cao Zhengbing2 and Cai Lihui1 *1Department of Otorhinolaryngology, Huashan Hospital, Fudan University, Shanghai 2Department of Macromolecule Science, Fudan University, Shanghai, China* 
