The Evolution of Pneumocystis jirovecii Pneumonia Prophylaxis for Pediatric Patients With Extracranial Solid Tumors: A Review of Historical Insights and Future Directions. - Kumar K; Connolly DM; Kellington E; Zelunka E; Kerrigan K; Shaikh F; Nathan PC; Irwin MS; Cohen-Gogo S (Pediatric blood & cancer, 2026)