| 2010 | | Oestrogen and progesterone receptor expression in melasma: an immunohistochemical analysis. | 강희영, 김유찬, 이은소, 장용현 |
| 2018 | | Off-label use of tocilizumab to treat non-juvenile idiopathic arthritis in pediatric rheumatic patients: a literature review | 김현아, 서창희, 정주양 |
| 1998 | | Oilseed rape allergy presented as occupational asthma in the grain industry. | 남동호, 박해심 |
| 2021 | | Oleoylethanolamide induces eosinophilic airway inflammation in bronchial asthma | 박해심, 신유섭, 예영민, 최영우 |
| 2016 | | Olfactory dysfunction is related to postoperative delirium in Parkinson's disease | 윤정한, 홍지만 |
| 2007 | | Olfactory Function and Its Correlation with Cardiac 123I-MIBG in Patients with Parkinson’s Disease and Multiple System Atrophy | 김현준, 이필휴 |
| 2015 | | Olfactory function and neuropsychological profile to differentiate dementia with Lewy bodies from Alzheimer's disease in patients with mild cognitive impairment: A 5-year follow-up study. | 문소영, 윤정한, 홍지만 |
| 2023 | | Olfactory modulation of stress-response neural circuits | Afzal, Ramsha, 이은정 |
| 2002 | | Oligodendrocytes from human donors differ in resistance to herpes simplex virus 1 (HSV-1). | 김승업 |
| 2004 | | Oligomer synthesis by priming deficient polymerase in hepatitis B virus core particle. | 김경민, 박선, 신호준 |
| 2019 | | Olmesartan is not associated with the risk of enteropathy: a Korean nationwide observational cohort study | 박래웅, 윤덕용 |
| 2020 | | Omalizumab Treatment in Patients With Cholinergic Urticaria: A Real-World Retrospective Study in Korea | 박해심, 신유섭, 예영민 |
| 2009 | | Omega-3 불포화지방산과 부정맥 | 황교승 |
| 2016 | | Omental flap for treatment of dead space after left upper lobectomy due to aspergilloma | 박성용, 정준호, 함석진 |
| 2021 | | Omentum preservation as an oncologically comparable and surgically superior alternative to total omentectomy during radical gastrectomy for T3–T4 gastric cancer | 노철규 |
| 2022 | | Omicron: A Heavily Mutated SARS-CoV-2 Variant Exhibits Stronger Binding to ACE2 and Potently Escapes Approved COVID-19 Therapeutic Antibodies | SHAH, MASAUD, 우현구 |
| 2015 | | On the Estimation of Heritability with Family-Based and Population-Based Samples. | 조남한 |
| 2009 | | On the mechanism of internalization of alpha-synuclein into microglia: roles of ganglioside GM1 and lipid raft. | 박상면, 주일로 |
| 2022 | | On-demand Versus Continuous Maintenance Treatment of Gastroesophageal Reflux Disease With Proton Pump Inhibitors: A Systematic Review and Meta-analysis | 이광재 |
| 2023 | | On-demand Versus Continuous Maintenance Treatment With a Proton Pump Inhibitor for Mild Gastroesophageal Reflux Disease: A Prospective Randomized Multicenter Study | 이광재 |
