title: A cytotoxic DNA precursor is taken up selectively by human cancer xenografts.
mesh_terms: D000818:Animals; D002822:Choriocarcinoma / Q000378:metabolism*; D003106:Colon / Q000378:metabolism; D004247:DNA / Q000096:biosynthesis*; D005260:Female; D005472:Fluorouracil / Q000378:metabolism; D006801:Humans; D006918:Hydroxyurea / Q000378:metabolism; D007065:Idoxuridine / Q000378:metabolism*; D008727:Methotrexate / Q000378:metabolism; D051379:Mice; D008819:Mice, Nude; D009368:Neoplasm Transplantation; D009694:Nucleic Acid Precursors / Q000378:metabolism*; D011247:Pregnancy; D014594:Uterine Neoplasms / Q000378:metabolism*
chemical_list: D009694:Nucleic Acid Precursors; D004247:DNA; D007065:Idoxuridine; D005472:Fluorouracil; D006918:Hydroxyurea; D008727:Methotrexate