Simultaneous Presentation of Post-Transplant Lymphoproliferative Disorder (PTLD) and Acute Cellular Rejection (ACR) in a Liver Transplant Recipient: A Therapeutic Conundrum. - Mishra A; Kubina M; Peddu DK; Viglianti BL; Perry AM; Kathuria P; Kwon H; Carty SA; Bloom P (Case reports in gastrointestinal medicine, 2025)