Pheresis is a special kind of blood donation by which specific components of the blood can be separated. It came from a Greek word meaning 'to take away' or 'separate'. By this method, the blood components like plasma, erythrocytes, platelets, granulocytes , and agranulocytes can be separated. The pheresis is done using a machine called a cell separator. The separation is based on density gradient centrifugation The separated components are...
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