Kim M, Kim DH, Lee JY, Nam Y, Lee JH.  Leucovorin-induced Hypersensitivity Reaction in a Patient with Metastatic Colorectal Cancer Treated with Cetuximab Plus FOLFOX Chemotherapy: A Case Report.  Korean J Gastroenterol 2023;82:288-294.  https://doi.org/10.4166/kjg.2023.114