| 2020 | The financial burden associated with medical costs among childhood cancer patients and their families related to their socioeconomic status: the perspective of National Health Insurance Service
| INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH |
| 2022 | The First 100 Cases of Endoscopic Combined Intrarenal Surgery in Korea: Matched Cohort Analyses versus Shock-Wave Lithotripsy
| YONSEI MEDICAL JOURNAL |
| 2024 | The first adolescent case infected with chikungunya virus in South Korea
| Pediatric Emergency Medicine Journal |
| 2024 | The First Case of a Korean Patient with a Mutation-Confirmed Tumor Necrosis Factor Receptor-Associated Periodic Syndrome
| YONSEI MEDICAL JOURNAL |
| 2009 | The first case of antibiotic-associated colitis by Clostridium difficile PCR Ribotype 027 in Korea
| JOURNAL OF KOREAN MEDICAL SCIENCE |
| 2012 | The first case of familial Mediterranean fever associated with renal amyloidosis in Korea
| YONSEI MEDICAL JOURNAL |
| 2020 | The First Case of Ochrobactrum pseudogrignonense Bacteremia in Korea
| ANNALS OF LABORATORY MEDICINE |
| 2012 | The First Case of Successful Transcatheter Aortic Valve Implantation Using CoreValve in Korea
| KOREAN CIRCULATION JOURNAL |
| 2019 | The First Case Series of Cryopyrin-Associated Periodic Syndrome in Korea
| Allergy Asthma & Immunology Research |
| 2024 | The First Decade of SuFEx Chemistry: Advancements in SuFEx Polymerization, Non-Canonical SuFEx Reactions, and SuFEx Radiochemistry
| Synthesis |
| 2006 | The first detection of CTX-M-14 extended-spectrum β-lactamase among diverse β-lactamase–producing Proteus mirabilis clinical isolates | DIAGNOSTIC MICROBIOLOGY AND INFECTIOUS DISEASE |
| 2024 | The First East Asian Patient With Parkinson's Disease Caused by the A53E SNCA Mutation With Early Progression to Dementia
| JOURNAL OF MOVEMENT DISORDERS |
| 2011 | The first experience of robot assisted spleen-preserving laparoscopic distal pancreatectomy in Korea
| YONSEI MEDICAL JOURNAL |
| 2015 | The first experiences of robotic single-site cholecystectomy in Asia: a potential way to expand minimally-invasive single-site surgery?
| YONSEI MEDICAL JOURNAL |
| 2015 | The First Fellow of American College of Surgeons to Come to Korea: Dr. Alfred Irving Ludlow
| YONSEI MEDICAL JOURNAL |
| 2019 | The First Human Trial of Transoral Robotic Surgery Using a Single-Port Robotic System in the Treatment of Laryngo-Pharyngeal Cancer | ANNALS OF SURGICAL ONCOLOGY |
| 2024 | The first Korean carbon-ion radiation therapy facility: current status of the Heavy-ion Therapy Center at the Yonsei Cancer Center
| RADIATION ONCOLOGY JOURNAL |
| 2009 | The First Korean Case of Camurati-Engelmann Disease (Progressive Diaphyseal Dysplasia) Confirmed by TGFB1 Gene Mutation Analysis
| JOURNAL OF KOREAN MEDICAL SCIENCE |
| 2012 | The First Korean Case of Candidemia due to Candida dubliniensis
| ANNALS OF LABORATORY MEDICINE |
| 2000 | The First Korean Case of Human Pulmonary Dirofilariasis
| Yonsei Medical Journal |
