1. Hangil Eye Hospital Incheon Republic of Korea
2. Department of Ophthalmology, Samsung Medical Center Sungkyunkwan University School of Medicine Seoul South Korea
3. Department of Neurosurgery, Endoscopic Skull Base Surgery Clinic, Brain Tumor Center, Samsung Medical Center Sungkyunkwan University School of Medicine Seoul South Korea
4. Department of Otorhinolaryngology‐Head and Neck Surgery, Samsung Medical Center Sungkyunkwan University School of Medicine Seoul South Korea