PT - JOURNAL ARTICLE AU - David Eric Kemp AU - Kathleen N Franco TI - Possible leukopenia associated with long-term use of echinacea. DP - 2002 Sep 01 TA - The Journal of the American Board of Family Practice PG - 417--419 VI - 15 IP - 5 4099 - http://www.jabfm.org/content/15/5/417.short 4100 - http://www.jabfm.org/content/15/5/417.full SO - J Am Board Fam Med2002 Sep 01; 15