A Model-Informed Early Prediction of Methotrexate-Induced Acute Kidney Injury in Pediatric Patients with Osteosarcoma Using Real-World Data: A Multi-center Pharmacokinetic Study. - Rega P; Vallespin JM; Aldaz A; Pappas A; Guido PC; Azocar M; Villarroel M; Pauley JL; Stewart CF; Ibarra M; Schaiquevich P (Clinical pharmacokinetics, 2026)