Journal Impact Factors 2005 Journal Impact Factor is from Journal Citation Report (JCR), a product of Thomson ISI (Institute for Scientific Information). This is a subscription service provided by Thomson. The following list was compiled from data gathered from journal websites and Sci-Bytes. Rank Abbreviated Journal Title IF 21 ENDOCR REV 22.538 22 NAT REV NEUROSCI 20.951 23 CHEM REV 20.869 24 ANNU REV PHARMACOL 19.833 25 NAT CELL BIOL 19.717 26 NAT REV GENET 19.211 27 NAT REV DRUG DISCOV 18.775 28 CANCER CELL 18.725 29 ANNU REV ASTRON ASTR 18.567 30 SURF SCI REP 17.857 31 ANNU REV PLANT BIOL 17.780 32 REV PHYSIOL BIOCH P 17.053 33 ANNU REV BIOPH BIOM 16.175 34 PROG POLYM SCI 16.045 35 NAT MATER 15.941 36 PHARMACOL REV 15.689 37 GENE DEV 15.610 38 MICROBIOL MOL BIOL R 15.500 39 NAT NEUROSCI 15.456 40 CURR OPIN CELL BIOL 15.246 The complete list was removed from this website due to copy-right violations. A list of journal impact factor 2004 is available from: http://www.dote.hu/impact_factor.html