1. Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina.
2. Department of Medical Genetics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
3. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, China.
4. Department of Biologic and Materials Sciences, University of Michigan, Ann Arbor, Michigan.
5. Department of Biomedical Engineering, Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, Michigan.