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  Indian J Med Microbiol
 

Figure 4: Blood in the vacutainer tubes after centrifugation at 3,000 rpm for 10 min divided into three fractions; lower fraction of red blood cells, middle fraction containing fibrin clot, and upper acellular plasma fraction

Figure 4: Blood in the vacutainer tubes after centrifugation at 3,000 rpm for 10 min divided into three fractions; lower fraction of red blood cells, middle fraction containing fibrin clot, and upper acellular plasma fraction