1. State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer Center Guangzhou Guangdong 510060 P. R. China
2. Rehabilitation Departmentthe Third Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong 510060 P. R. China
3. Department of Biomedical EngineeringColumbia University New York NY 10027 USA
4. Hefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of China Hefei Anhui 230027 P. R. China
5. National Engineering Research Center for Tissue Restoration and ReconstructionSouth China University of Technology Guangzhou Guangdong 510006 P. R. China