
Keywords: 5-FU, 5-fluorouracil; Cape, capecitabine; DFCR, 5′-deoxy-5-fluorocytidine; DFUR, 5′-deoxy-5-fluorouridine; EMA, European Medicines Agency; FDA, Food and Drug Administration; HQC, high quality control; IS, internal standard; LLOQ, lower limit of quantifica