Orvosi Hetilap《医学周刊》（周刊）. The journal publishes original and review papers in the fields of experimental and clinical medicine. It covers epidemiology, diagnostics, therapy and the prevention of human diseases as well as papers of medical history. Orvosi Hetilap is the oldest, still in-print, Hungarian publication and also the one-and-only weekly published scientific journal in Hungary.

Orthopedic Clinics of North America《北美矫形临床》（季刊）. Orthopedic Clinics offers clinical review articles on the most cutting-edge technologies and techniques in the field. Published four times a year—in January, April, July, and October—each issue focuses on a single topic that crosses over the following specialty areas: adult reconstruction, upper extremity, pediatrics, trauma, foot and ankle, and sports medicine.

Orthopaedics & Traumatology-Surgery & Research《骨科与创伤学：外科学与研究》（一年8期）. Orthopaedics & Traumatology: Surgery & Research (OTSR) publishes original scientific work in English related to all domains of orthopaedics. Original articles, Reviews, Technical notes and Concise follow-up of a former OTSR study are published in English in electronic form only and indexed in the main international databases.

Orthopaedic Journal of Sports Medicine《运动医疗骨科杂志》（月刊）. The Orthopaedic Journal of Sports Medicine (OJSM), developed by the American Orthopaedic Society for Sports Medicine (AOSSM), is a global, peer-reviewed, open access journal that combines the interests of researchers and clinical practitioners across orthopaedic sports medicine, arthroscopy, and knee arthroplasty.

Orthodontics & Craniofacial Research《正畸与颅面研究》（双月刊）. Orthodontics & Craniofacial Research - Genes, Growth and Development is published to serve its readers as an international forum for the presentation and critical discussion of issues pertinent to the advancement of the specialty of orthodontics and the evidence-based knowledge of craniofacial growth and development. This forum is based on scientifically supported information, but also includes minority and conflicting opinions.

Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology《口腔外科学、口腔内科学、口腔病理学和口腔放射学》（月刊）. Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology is required reading for anyone in the fields of oral surgery, oral medicine, oral pathology, oral radiology or advanced general practice dentistry. It is the only major dental journal that provides a practical and complete overview of the medical and surgical techniques of dental practice in four areas. Topics covered include such current issues as dental implants, treatment of HIV-infected patients, and evaluation and treatment of TMJ disorders.

Oral Health and Preventive Dentistry《口腔健康与口腔预防》（不定期）. Clinicians, general practitioners, teachers, researchers, and public health administrators will find this journal an indispensable source of essential, timely information about scientific progress in the fields of oral health and the prevention of caries, periodontal diseases, oral mucosal diseases, and dental trauma. Central topics, including oral hygiene, oral epidemiology, oral health promotion, and public health issues, are covered in peer-reviewed articles, such as clinical and basic science research reports or reviews.

Oral and Maxillofacial Surgery Clinics of North America《北美口腔颌面外科临床》（季刊）. Published four times a year—February, May, August, and November—Oral and Maxillofacial Surgery Clinics of North America updates you on the latest trends in patient management and the newest advances, as well as provides a sound basis for choosing treatment options. Under the direction of an experienced guest editor, each issue focuses on a single topic in oral and maxillofacial surgery. Topics include reconstructive surgery, implants, dentoalveolar surgery, cleft and craniofacial surgery, craniomaxillofacial trauma surgery, TMJ, and cosmetic surgery.

Optometry and Vision Science《验光与视觉科学》（月刊）. Optometry and Vision Science is the most authoritative source for current developments in optometry, physiological optics, and vision science. This frequently cited monthly scientific journal has served primary eye care practitioners for more than 75 years, promoting vital interdisciplinary exchange among optometrists and vision scientists worldwide.

Ophthalmology and Therapy《眼科与治疗》（月刊）. Ophthalmology and Therapy is an international, open access, peer-reviewed (single-blind), and rapid publication journal. The scope of the journal is broad, covering the use of ophthalmological therapies, devices, and surgical techniques.