There are 868 titles available from Elsevier ClinicalKey Journals
- Neurología (English Edition) (ISSN: 2173-5808)
- Neuromuscular Disorders (ISSN: 0960-8966,EISSN: 1873-2364)
- Neuropeptides (ISSN: 0143-4179,EISSN: 1532-2785)
- Neurophysiologie Clinique-Clinical Neurophysiology (ISSN: 0987-7053,EISSN: 1769-7131)
- Neuroscience (ISSN: 0306-4522,EISSN: 1873-7544)
- Neurosurgery Clinics of North America (ISSN: 1042-3680,EISSN: 1558-1349)
- Neurotoxicology and Teratology (ISSN: 0892-0362,EISSN: 1872-9738)
- New Microbes and New Infections (ISSN: 2052-2975)
- North American Spine Society Journal (EISSN: 2666-5484)
- Nuclear Medicine and Biology (ISSN: 0969-8051,EISSN: 1872-9614)
- Nutrition (ISSN: 0899-9007,EISSN: 1873-1244)
- Nutrition Metabolism and Cardiovascular Diseases (ISSN: 0939-4753,EISSN: 1590-3729)
- Nutrition Research (ISSN: 0271-5317,EISSN: 1879-0739)
- Obesity Medicine (EISSN: 2451-8476)
- Obesity Pillars (EISSN: 2667-3681)
- Obesity Research & Clinical Practice (ISSN: 1871-403X,EISSN: 1878-0318)
- Obstetrics and Gynecology Clinics of North America (ISSN: 0889-8545,EISSN: 1558-0474)
- Obstetrics, gynaecology & reproductive medicine (ISSN: 1751-7214,EISSN: 1879-3622)
- Ocular Surface (ISSN: 1542-0124,EISSN: 1937-5913)
- One Health (EISSN: 2352-7714)
- Operative techniques in orthopaedics (ISSN: 1048-6666,EISSN: 1558-3848)
- Operative techniques in otolaryngology--head and neck surgery (ISSN: 1043-1810,EISSN: 1557-9395)
- Operative Techniques in Sports Medicine (ISSN: 1060-1872,EISSN: 1557-9794)
- Operative techniques in thoracic and cardiovascular surgery (ISSN: 1522-2942,EISSN: 1532-8627)
- Ophthalmology (ISSN: 0161-6420,EISSN: 1549-4713)
- Ophthalmology Science (ISSN: 2666-9145)
- Oral and Maxillofacial Surgery Cases (EISSN: 2214-5419)
- Oral and Maxillofacial Surgery Clinics of North America (ISSN: 1042-3699,EISSN: 1558-1365)
- Oral Oncology (ISSN: 1368-8375,EISSN: 1879-0593)
- Oral Oncology Reports (EISSN: 2772-9060)
- Oral Surgery Oral Medicine Oral Pathology Oral Radiology (ISSN: 2212-4403,EISSN: 2212-4411)
- Oral surgery, oral medicine, oral pathology, oral radiology and endodontics (ISSN: 1079-2104,EISSN: 1528-395X)
- Orthopaedics & Traumatology-Surgery & Research (ISSN: 1877-0568)
- Orthopaedics and Trauma (ISSN: 1877-1327,EISSN: 1877-1335)
- Orthopedic Clinics of North America (ISSN: 0030-5898,EISSN: 1558-1373)
- Orthoplastic Surgery (EISSN: 2666-769X)
- Osteoarthritis and Cartilage (ISSN: 1063-4584,EISSN: 1522-9653)
- Osteoarthritis and Cartilage Open (EISSN: 2665-9131)
- Osteoarthritis Imaging (EISSN: 2772-6541)
- Otolaryngologic Clinics of North America (ISSN: 0030-6665,EISSN: 1557-8259)
- Otolaryngology Case Reports (EISSN: 2468-5488)
- Paediatric Respiratory Reviews (ISSN: 1526-0542,EISSN: 1526-0550)
- Paediatrics and child health (ISSN: 1751-7222,EISSN: 1878-206X)
- Pancreatology (ISSN: 1424-3903,EISSN: 1424-3911)
- Parasitology International (ISSN: 1383-5769,EISSN: 1873-0329)
- Parkinsonism & Related Disorders (ISSN: 1353-8020,EISSN: 1873-5126)
- Pathology (ISSN: 0031-3025,EISSN: 1465-3931)
- Patient Education and Counseling (ISSN: 0738-3991,EISSN: 1873-5134)
- PEC Innovation (EISSN: 2772-6282)
- Pediatric Clinics of North America (ISSN: 0031-3955,EISSN: 1557-8240)