| Abbreviation | Journal Title | ISSN | NCBI ID | IF 2003 |
| J INT MED RES | The Journal of international medical research. | 0300-0605 | 3376 | |
| J INT NEUROPSYCH SOC | Journal of the International Neuropsychological Society : JINS. | 1355-6177 | 20530 | |
| J INTELL DISABIL RES | Journal of intellectual disability research : JIDR. | 0964-2633 | 2125 | |
| J INTERF CYTOK RES | Journal of interferon & cytokine research : the official journal of the International Society for Interferon and Cytokine Research. | 1079-9907 | 8749 | |
| J INTERN MED | Journal of internal medicine. | 0954-6820 | 4721 | |
| J INTERV CARD ELECTR | Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing. | 1383-875X | 21155 | |
| J INVERTEBR PATHOL | Journal of invertebrate pathology. | 0022-2011 | 4838 | |
| J INVEST ALLERG CLIN | Journal of investigational allergology & clinical immunology : official organ of the International Association of Asthmology (INTERASMA) and Sociedad Latinoamericana de Alergia e Inmunologia. | 1018-9068 | 2610 | |
| J INVEST DERM SYMP P | The journal of investigative dermatology. Symposium proceedings / the Society for Investigative Dermatology, Inc. [and] European Society for Dermatological Research. | 1087-0024 | 20841 | |
| J INVEST DERMATOL | The Journal of investigative dermatology. | 0022-202X | 4839 | |
| J INVEST MED | Journal of investigative medicine : the official publication of the American Federation for Clinical Research. | 1081-5589 | 8614 | |
| J INVEST SURG | Journal of investigative surgery : the official journal of the Academy of Surgical Research. | 0894-1939 | 1874 | |
| J KOREAN MED SCI | Journal of Korean medical science. | 1011-8934 | 1464 | |
| J LAB CLIN MED | The Journal of laboratory and clinical medicine. | 0022-2143 | 4906 | |
| J LAPAROENDOSC ADV A | Journal of laparoendoscopic & advanced surgical techniques. Part A. | 1092-6429 | 20817 | |
| J LARYNGOL OTOL | The Journal of laryngology and otology. | 0022-2151 | 4908 | |
| J LASER APPL | Journal of laser applications. | 1042-346X | 2002 | |
| J LAW MED ETHICS | The Journal of law, medicine & ethics : a journal of the American Society of Law, Medicine & Ethics. | 1073-1105 | 2522 | |
| J LEUKOCYTE BIOL | Journal of leukocyte biology. | 0741-5400 | 4912 | |
| J LIPID RES | Journal of lipid research. | 0022-2275 | 4914 | |
| J LIPOSOME RES | Journal of liposome research. | 0898-2104 | 29731 | |
| J MAGN RESON | Journal of magnetic resonance (San Diego, Calif. : 1997) | 1090-7807 | 20597 | |
| J MAL VASCUL | Journal des maladies vasculaires. | 0398-0499 | 4927 | |
| J MAMMAL | Journal of mammalogy. | 0022-2372 | 4918 | |
| J MAMMARY GLAND BIOL | Journal of mammary gland biology and neoplasia. | 1083-3021 | 21181 | |
| J MANIP PHYSIOL THER | Journal of manipulative and physiological therapeutics. | 0161-4754 | 4920 | |
| J MAR BIOL ASSOC UK | Journal of the Marine Biological Association of the United Kingdom. Marine Biological Association of the United Kingdom. | 0025-3154 | 25483 | |
| J MAR RES | Journal of marine research. | 0022-2402 | 21825 | |
| J MATER RES | Journal of materials research. | 0884-2914 | 22595 | |
| J MATER SCI LETT | Journal of materials science letters. | 0261-8028 | 29722 | |