Brittany Rocque, Aaron Zaldana, Carly Weaver, Julia Huang, Arianna Barbetta, Victoria Shakhin, Cameron Goldbeck, George Yanni, Shannon Zielsdorf, Yong Kwon, Kambiz Etesami, Yuri Genyk, Shengmei Zhou, Rohit Kohli, Juliet Emamaullee – 25 December 2021 – Although pediatric liver transplantation (LT) results in excellent long‐term outcomes, a high incidence of early acute cellular rejection and late graft fibrosis persists. Routine measurement of allograft enzymes may not reliably detect rejection episodes, identify candidates for immunosuppression minimization, or indicate allograft fibrosis.