Keywords: عوامل لخته شدن; aPTT; activated partial thromboplastin time; α2MG; α2 macroglobulin; CAMR; chronic antibody-mediated rejection; DFPP; double-filtration plasmapheresis; DSA; donor-specific allo-antibody; ETP; endogenous thrombin potential; MFI; mean fluorescence intensi