1. Department of Ophthalmology, Pusan National University College of Medicine & Medical Research Institute of Pusan National University Hospital, Busan, Korea.
2. Busan BalGeunSeSang Eye Clinic, Busan, Korea.
3. Department of Ophthalmology, Pusan National University Yangsan Hospital, Yangsan, Korea.
4. Department of Urology, Pusan National University Hospital, Busan, Korea.