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Figure 3


Fig. 3. The different types of granules differ in their overall size. The surface area of the different types of granules was measured by Easy Image Measurements 2000. Overall, 195 of type 1, 113 of type 2, 63 of type 3 and 51 of type 4 were measured, and the sizes were compared using statistical tests. The different types of granules were vastly different in their size except that type 2 granules were not significantly different from type 3 granules.