1. Division of Pediatric Surgery, Department of Surgery, Taichung Veterans General Hospital, Taichung,
Taiwan, 40705 and Department of Medicine, National Yang-Ming University, Taipei, Taiwan, 112
2. Graduate Program of Optoelectronic Technology, National Chi Nan University, Nantou, Taiwan,
54561
3. Department of Applied Materials and Optoelectronic Engineering, National Chi Nan University, Nantou,
Taiwan, 54561