1. Department of Anatomy, Third Military Medical University , Chongqing 400038, China
2. State Key Laboratory of Trauma, Burn and Combined Injury , Chongqing 400038, China
3. Department of Plastic and Aesthetic Surgery, Southwest Hospital, Third Military Medical University , Chongqing 400038, China
4. Engineering Research Center of Tissue and Organ Regeneration and Manufacturing, Ministry of Education , Chongqing 400038, China