Källström, Jonatan, Riitta Niinimäki, Johan Fredlund, Hartmut Vogt, Laura S. Korhonen, Anders Castor, Kjeld Schmiegelow, Maria Thastrup, and Torben Ek. 2026. “Allopurinol Increases DNA-Thioguanine Nucleotides During Maintenance Therapy in Pediatric Acute Lymphoblastic Leukemia”. Haematologica 111 (5). Pavia, Italy, 1835-39. https://doi.org/10.3324/haematol.2025.288872.