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Figure 6.
Comparison of particle size-shear pressure of (A) coarse lactose, (B) micronized lactose before and after storage at 75% RH for three months and particle size was determined by an Aerosizer at 3.4, 10.3, 20.7 and 27.6 kPa (n = 3, data are shown as mean with standard deviation by error bar).