1 Department of Thoracic and Cardiovascular Surgery, Gil Medical Center, Gachon University College of Medicine, 21, Namdong-daero 774 beon-gil, Namdong-gu, Incheon, 21565, South Korea.
2 Department of Thoracic and Cardiovascular Surgery, Gil Medical Center, Gachon University College of Medicine, 21, Namdong-daero 774 beon-gil, Namdong-gu, Incheon, 21565, South Korea. Electronic address: cdgpch@gilhospital.com.