But the graftrejection, both acute and chronic rejection, is still an obstacle for heart transplantation.
但心脏移植后的急性、慢性排斥反应一直是阻碍心脏移植广泛应用的最重要因素。
3
Thus, an optimal approach would involve an islet transplantation protocol that would prevent graftrejection without the need for potentially dangerous long-term and nonspecific immune suppression.