Figure 1. Flow cytometric analysis of peripheral blood lymphocyte subset counts of 28 patients with pandemic (H1N1) 2009, China. Counts and percentages are means. Error bars indicate SD. Each mean value was within the corresponding reference range. Lymphocyte subsets are as shown in the Table. A) Absolute count. B) Percentage of lymphocyte subset count compared with total lymphocyte count. *p<0.05; †p<0.01.
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