Vannas, Christoffer, et al. “The Levels of Circulating Tumor DNA and Inflammatory Proteins Depict the Clinical Response in a Patient With Metastatic Undifferentiated Pleomorphic Sarcoma, a Case Report”. Acta Oncologica, vol. 64, Sept. 2025, pp. 1212-6, doi:10.2340/1651-226X.2025.44337.