Correction: The KrasG12D;Trp53fl/fl murine model of undifferentiated pleomorphic sarcoma is macrophage dense, lymphocyte poor, and resistant to immune checkpoint blockade - Karys M. Hildebrand; Arvind K. Singla; Reid McNeil; Kayla L. Marritt; Kurt N. Hildebrand; Franz Zemp; Jahanara Rajwani; Doha Itani; Pinaki Bose; Douglas J. Mahoney; Frank R. Jirik; Michael J. Monument (PLoS ONE, 2026)