title: Response to Letter Regarding Article, "Percutaneous Coronary Intervention at Centers With and Without On-Site Surgical Backup: An Updated Meta-Analysis of 23 Studies".
authors.affiliation: Department of Internal, Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Korea.
authors.forename: Joo Myung
authors.initials: JM
authors.lastname: Lee
authors.affiliation: Department of Internal, Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Korea.
authors.forename: Doyeon
authors.initials: D
authors.lastname: Hwang
authors.affiliation: Department of Internal, Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Korea.
authors.forename: Jonghanne
authors.initials: J
authors.lastname: Park
authors.affiliation: Department of Internal, Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Korea.
authors.forename: Kyung-Jin
authors.initials: KJ
authors.lastname: Kim
authors.affiliation: Division of Biostatistics, Center for Devices and Radiological Health, Food and Drug Administration, Silver Spring, MD.
authors.forename: Chul
authors.initials: C
authors.lastname: Ahn
authors.affiliation: Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, KoreaInstitute of Aging, Seoul National University, Seoul, Korea.
authors.forename: Bon-Kwon
authors.initials: BK
authors.lastname: Koo
mesh_terms: D003324:Coronary Artery Disease / Q000601:surgery*; D005260:Female; D006297:Health Services Accessibility / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D062645:Percutaneous Coronary Intervention / Q000706:statistics & numerical data*; D013531:Surgicenters / Q000706:statistics & numerical data*; D013903:Thoracic Surgery / Q000706:statistics & numerical data*