- The Lancet. Gastroenterology & Hepatology
- The Lancet Infectious Diseases
- The Laryngoscope
- The Mediterranean Journal of Otology
- The Oncologist
- The Open Conference Proceedings Journal
- The Open Ophthalmology Journal
- The Pharma Innovation
- The Pharmacogenomics Journal
- The Plant Journal
- The Ring
- The Tohoku Journal of Experimental Medicine
- The World Journal of Biological Psychiatry
- Theoretical & Applied Mechanics Letters
- Theranostics
- Therapeutic Advances in Chronic Disease
- Therapeutic Advances in Gastroenterology
- Therapeutic Advances in Medical Oncology
- Therapeutic Advances in Musculoskeletal Disease
- Therapeutic Advances in Neurological Disorders
- Therapeutic Advances in Psychopharmacology
- Therapeutic Advances in Respiratory Disease
- Therapeutic Advances in Urology
- Therapeutics and Clinical Risk Management
- Theriogenology
- Thermochimica Acta
- Thin Solid Films
- THINK : studenckie naukowe czasopismo internetowe
- Thoracic and Cardiovascular Surgeon
- Thrombosis and Haemostasis
- Thrombosis Research
- Thyroid Research
- Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
- Tissue Antigens
- Tobacco Control
- Towaroznawcze Problemy Jakości. Polish Journal of Commodity Science
- Toxicological and Environmental Chemistry
- Toxicological Sciences
- Toxicology
- Toxicology and Applied Pharmacology
- Toxicology and Industrial Health
- Toxicology in Vitro
- Toxicology Letters
- Toxicology Mechanisms and Methods
- Toxics
- Toxins
- TPS-Twój Przegląd Stomatologiczny
- Trace Elements and Electrolytes
- Trace Elements in Medicine
- Transboundary and Emerging Diseases
- Transfusion
- Transfusion And Apheresis Science
- Translational Cancer Research
- Translational Lung Cancer Research
- Translational Oncology
- Translational Pediatrics
- Translational Research
- Translational Vision Science & Technology
- Transplant Infectious Disease
- Transplant International
- Transplantation
- Transplantation Proceedings
- Transport Miejski i Regionalny
- Transport Problems
- Transportation Research Procedia
- Transylvanian Review
- Travma
- Treatment strategies. Dermatology
- Trends in Cancer Research and Chemotherapy
- Trends in Endocrinology and Metabolism