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The talk is devoted to the studies by EPR techniques of various calcium phosphates (CaP) - hydroxyapatite (HA), tricalcium phosphate (TCP), octacalcium phosphate (OCP) doped by different cations in amount of 0- 20 mol% for bioengineering and comparing the results with those obtained for the plaque tissues of aorta walls from male patients after carotid endarterectomy operations to follow the processes of pathological calcification. The work is supported by RFBR grant 18- 29- 11086.
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