1. National Research Laboratory of Vascular Biology and Stem Cells, Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
2. Department of Ophthalmology, College of Medicine, Yeungnam University, Daegu, Korea
3. Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
4. Department of Cardiovascular Medicine, Tokyo University Graduate School of Medicine, Tokyo, Japan