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  Indian J Med Microbiol
 

Figure 6: Blood collection tube with red cap demonstrates three different layers after centrifugation: the top layer is platelet-poor plasma; the middle layer is concentrated growth factor; and the bottom layer corresponding to red blood cells

Figure 6: Blood collection tube with red cap demonstrates three different layers after centrifugation: the top layer is platelet-poor plasma; the middle layer is concentrated growth factor; and the bottom layer corresponding to red blood cells