| 2011 | Oral food challenges in children
| 김경원 | Article |
| 2014 | Oral foregut cyst in the ventral tongue: a case report.
| 곽은정, 박형식, 정영수, 정휘동 | Article |
| 2015 | Oral Hairy Leukoplakia in Patient with Human Immunodeficiency Virus Infection
| 권정승, 안형준, 최종훈 | Article |
| 2018 | Oral health and later coronary heart disease: Cohort study of one million people
| 정금지, 지선하 | Article |
| 2016 | Oral Macrolide Therapy Following Short-term Combination Antibiotic Treatment of Mycobacterium massiliense Lung Disease | 신성재 | Article |
| 2005 | Oral Manifestations of a Child With Chronic Vomiting | 곽지윤, 김성오, 이제호, 최병재 | Article |
| 2018 | Oral Papillomatosis in Immunocompromised Patients: A Case Series of Kidney Transplant Recipients and Myelodysplastic Syndrome | 곽은정, 박원서, 조은애산드라 | Article |
| 2018 | Oral propranolol therapy in 23 infants with infantile hemangioma
| 노태석, 이원재, 홍종원 | Article |
| 2018 | Oral Pyridostigmine-responsive Visceral Myopathy With ACTG2 Mutations: A Case Series | 김승, 김혜민, 박소원, 오정탁, 이진성, 이현주 | Article |
| 2014 | Oral signs of acute leukemia for early detection.
| 김창성, 임현창 | Article |
| 2017 | Oral Symptoms Related to Vitamin B12 Deficiency in a Patient with Crohn's Disease
| 권정승, 김영건, 박연정, 안형준 | Article |
| 2003 | Oral Tegafur-uracil Plus Folinic Acid versus Intravenous 5-fluorouracil Plus Folinic Acid as Adjuvant Chemotherapy of Colon Cancer
| 김남규, 김원호, 김태일, 신성관 | Article |
| 2013 | Oral Tranexamic Acid Enhances the Efficacy of Low-Fluence 1064-Nm Quality-Switched Neodymium-Doped Yttrium Aluminum Garnet Laser Treatment for Melasma in Koreans: A Randomized, Prospective Trial | 신정우, 오상호, 이주희 | Article |
| 2011 | Oral vitamin B12 replacement: an effective treatment for vitamin B12 deficiency after total gastrectomy in gastric cancer patients. | 김충배, 김형일, 노성훈, 송기준, 최승호, 형우진 | Article |
| 2011 | Oral Vitamin B12 Therapy after Total Gastrectomy | 김형일, 형우진 | Article |
| 2008 | ORBIT: a multiresolution framework for deformable registration of brain tumor images.
| 이승구 | Article |
| 2014 | Orbital Apex Syndrome Caused by Invasive Aspergillosis | 강주완 | Article |
| 2016 | Orbital floor reconstruction using a tensor fascia lata sling after total maxillectomy. | 유대현, 윤인식, 이동원, 이원재, 정복기, 최은창 | Article |
| 2017 | Orbital Lymphangioma: Characteristics and Treatment Outcomes of 12 Cases
| 김창염, 우영준, 윤진숙 | Article |
| 2006 | Orbital marginal zone B-cell lymphoma of MALT: Radiotherapy results and clinical behavior | 서창옥, 양우익, 이상열 | Article |
