| #491 | Arteriosclerosis and thrombosis. -- Dallas : American Heart Association, 1991-1994. -- ISSN 1049-8834 |
| #492 | Arteriosclerosis, thrombosis, and vascular biology. -- Dallas : American Heart Association, 1995-. -- ISSN 1079-5642 print. -- ISSN 1524-4636 online |
| #493 | Artery Research. -- Amsterdam : Elsevier, 2006-. -- ISSN 1872-9312 print. -- ISSN 1876-4401 online |
| #494 | Arteterapie. -- Praha : Česká arteterapeutická asociace, 2001-2016. -- ISSN 1214-4460 |
| #495 | Arthritis and rheumatism. -- Hoboken : Wiley-Liss, 1958-. -- ISSN 0004-3591 print. -- ISSN 1529-0131 online |
| #496 | Arthritis care & research. -- New York : Elsevier, 1988-. -- ISSN 0893-7524 print. -- ISSN 1529-0123 online |
| #497 | Arthroscopy : the journal of arthroscopic & related surgery. -- New York : Raven Press, 1985-. -- ISSN 0749-8063 print. -- ISSN 1526-3231 online |
| #498 | Arthroskopie. -- Heidelberg : Springer, 1988-. -- ISSN 0933-7946 print. -- ISSN 1434-3924 online |
| #499 | Artificial intelligence in medicine. -- Amsterdam : Elsevier Science, 1989-. -- ISSN 0933-3657 print. -- ISSN 1873-2860 online |
| #500 | Artificial organs. -- New York : Raven Press, 1977-. -- ISSN 0160-564X print. -- ISSN 1525-1594 online |