Herluf Paulsen, Niels, et al. “Dihydropyrimidine Dehydrogenase (DPD) Genotype and Phenotype Among Danish Cancer Patients: Prevalence and Correlation Between DPYD-Genotype Variants and P-Uracil Concentrations”. Acta Oncologica, vol. 61, no. 11, Nov. 2022, pp. 1400-5, doi:10.1080/0284186X.2022.2132117.