THE INFLUENCE OF TUMOR IMMUNE MICROENVIRONMENT AND TUMOR IMMUNITY ON THE PATHOGENESIS, TREATMENT AND PROGNOSIS OF POST‐TRANSPLANT LYMPHOPROLIFERATIVE DISORDERS (PTLD). (12th June 2019) - Saito, H.; Shibayama, H.; Miyoshi, H.; Toda, J.; Kusakabe, S.; Ichii, M.; Fujita, J.; Fukushima, K.; Yokota, T.; Maeda, T.; Mizuki, M.; Oritani, K.; et al.