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. Author manuscript; available in PMC: 2008 Apr 30.
Published in final edited form as: J Med Food. 2007 Sep;10(3):423–434. doi: 10.1089/jmf.2006.257

FIG. 3.

FIG. 3

Effect of Echinacea preparations on splenic PFC response after covariance for the percentage of CD19+ splenocytes in each animal. PFC response was assayed as described in Materials and Methods and expressed as PFCs per 106 splenocytes. Results are presented as mean ± SE values of two independent experiments (n = 6).