PT - JOURNAL ARTICLE AU - Garfield, Eugene TI - Journal impact factor: a brief review DP - 1999 Oct 19 TA - Canadian Medical Association Journal PG - 979--980 VI - 161 IP - 8 4099 - http://www.cmaj.ca/content/161/8/979.short 4100 - http://www.cmaj.ca/content/161/8/979.full SO - CMAJ1999 Oct 19; 161