1. Department of Surgery, Oregon Health & Science University, 3181 Southwest Sam Jackson Park Road, Portland, OR 97239, USA
2. Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Stanford University, 257 Campus Drive, Stanford, CA 94305, USA
3. Department of Surgery, Plastic and Reconstructive Surgery Division, Division of Burn Surgery, University of Michigan Health Systems, 1500 East Medical Center Drive, Ann Arbor, MI 48104, USA
4. The Biomaterials and Advanced Drug Delivery (BioADD) Laboratory, Stanford University, 300 Pasteur Drive, Grant Building, Room S380, Stanford, CA 94305, USA