title: Cerebrospinal fluid versus serum concentrations of 5-FU, allopurinol, and oxypurinol during treatment of metastatic brain cancer with 5-FU infusion, allopurinol, and radiation.
mesh_terms: D000493:Allopurinol / Q000378:metabolism*; D001932:Brain Neoplasms / Q000556:secondary / Q000628:therapy*; D005472:Fluorouracil / Q000378:metabolism*; D006801:Humans; D008297:Male; D010117:Oxypurinol / Q000378:metabolism*; D011743:Pyrimidines / Q000378:metabolism*; D011879:Radiotherapy Dosage
chemical_list: D011743:Pyrimidines; D000493:Allopurinol; D010117:Oxypurinol; D005472:Fluorouracil