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Effect of hypertonic saline concentration on induced sputum percent solids. The mean ± SD percent solids for the HS concentrations of 3%, 4% and 5% are 3.13 ± 1.49 (n=35), 3.18 ± 2.12 (n=54), and 2.87 ± 1.59 (n=31) respectively. There was no significant difference between the HS concentrations (p=0.740).
