Limitations
This study is subject to the biases inherent in retrospective analysis. We also relied upon the data fidelity of a multicenter registry, which is susceptible to missing and incorrect data entry. Additionally, the lack of accurate information about adherence to maintenance immunosuppression, infections and post-transplant lymphoproliferative disorders prohibited a thorough analysis. There is also a lack of information regarding the specific clinical decisions as to why certain patients may have received induction therapy.