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Box plot showing median levels of white blood cells (WBC) stratified by draw date (day 0, day 1, days 5-7). Boxes show interquartile ranges and I bars demonstrate highest and lowest values. Day 0 versus day 1, P < 0.0001; day 0 versus days 5-7, P = 0.4189; day 1 versus days 5-7, P < 0.0001. (*P < 0.05).
