| 2013 | Optimal time of initiating adjuvant chemotherapy after curative surgery in colorectal cancer patients | 김광호; 이령아; 정순섭 | Article |
| 2019 | Optimal Timing of Spinal Ultrasound Evaluations for Sacral Dimples in Neonates: Earlier May Not Be Better | 조현혜 | Article |
| 2022 | Optimal timing of treatment at relapse after autologous stem cell transplantation in patients with multiple myeloma: a study of the Korean Multiple Myeloma Working Party (KMM-1909) | 문영철 | Article |
| 2019 | Optimal treatment of breast cancer in women older than 75 years: a Korea Breast Cancer Registry analysis | 임우성 | Article |
| 2010 | Optimal use of the halo-vest orthosis for upper cervical spine injuries | 김상진 | Review |
| 2010 | Optimal waist circumference for prediction of metabolic syndrome in Young Korean women with polycystic ovary syndrome | 성연아; 정혜원; 박혜숙; 오지영; 이혜진 | Article |
| 2019 | Optimization of Microenvironments Inducing Differentiation of Tonsil-Derived Mesenchymal Stem Cells into Endothelial Cell-Like Cells | 조인호; 유연실; 오세영 | Article |
| 2020 | Optimization of tenocyte lineage-related factors from tonsil-derived mesenchymal stem cells using response surface methodology | 신상진; 이승열 | Article |
| 2020 | Optimizing Preparative Regimen for Umbilical Cord Blood Transplantation in Adult Acute Leukemia Patients: Acute Lymphoblastic Leukemia Requires Myeloablative Conditioning but Not Acute Myeloid Leukemia | 문영철 | Article |
| 2014 | Optimizing third molar autotransplantation: Applications of reverse-engineered surgical templates and rapid prototyping of three-dimensional teeth | 박지만; 김선종 | Article |
| 2016 | Orai1 and STIM1 in ER/PM junctions: Roles in pancreatic cell function and dysfunction | 박성희 | Article |
| 2023 | Oral Anticoagulation Therapy in Atrial Fibrillation Patients with Advanced Chronic Kidney Disease: CODE-AF Registry | 박준범 | Article |
| 2020 | Oral health and changes in lipid profile: A nationwide cohort study | 송태진; 김진우 | Article |
| 2020 | Oral health and gastrointestinal cancer: A nationwide cohort study | 송태진; 이희성; 김진우; 장윤경; 우호걸 | Article |
| 2021 | Oral health and longitudinal changes in fasting glucose levels: A nationwide cohort study | 송태진; 장윤경 | Article |
| 2023 | Oral Health and Risk of Retinal Vascular Occlusions: A Nationwide Cohort Study | 송태진; 장윤경; 김성희 | Article |
| 2015 | Oral immunization of haemaggulutinin H5 expressed in plant endoplasmic reticulum with adjuvant saponin protects mice against highly pathogenic avian influenza A virus infection | 김윤근 | Article |
| 2017 | Oral Medications Enhance Adherence to Surveillance for Hepatocellular Carcinoma and Survival in Chronic Hepatitis B Patients | 김지은; 김휘영 | Article |
| 2023 | Oral Porphyromonas gingivalis infection affects intestinal microbiota and promotes atherosclerosis | 박영미; 조원경 | Article |
| 2007 | Oral reading in Korean semantic dementia | 정지향 | Meeting Abstract |
