<unk>  is a procedure in which the<unk> s of a prospective donor and recipient are tested for compatibility prior to transplantation. Mismatched donor and recipient<unk> s can lead to rejection of the<unk> s. There are multiple methods of<unk> .
Tissue typing
Mycology
Histopathology
Immunopathology
Molecular pathology
Hematopathology
Histology
Immunostaining