1. Interdisciplinary Program in Bioengineering, College of EngineeringSeoul National UniversitySeoul152‐742 Republic of Korea
2. Biomedical Research InstituteSeoul National University HospitalSeoul110‐744 Republic of Korea
3. Department of Plastic and Reconstructive SurgeryInstitute of Human‐Environment Interface Biology, College of Medicine, Seoul National UniversitySeoul110‐799 Republic of Korea
4. Department of Materials Science and Engineering, College of EngineeringSeoul National UniversitySeoul151‐744 Republic of Korea
5. Department of Preventive Medicine, Graduate School of Public HealthSeoul National University College of MedicineSeoul110‐799 Republic of Korea
6. Department of Biomedical EngineeringSeoul National University College of MedicineSeoul110‐799 Republic of Korea
7. Institute of Medical and Biological Engineering, Medical Research CenterSeoul National UniversitySeoul110‐799 Republic of Korea