title: More on methotrexate-nitrous oxide interaction.
mesh_terms: D000769:Anesthesia, Inhalation; D000818:Animals; D004357:Drug Synergism; D006801:Humans; D008727:Methotrexate / Q000494:pharmacology*; D009609:Nitrous Oxide / Q000494:pharmacology*; D051381:Rats
chemical_list: D009609:Nitrous Oxide; D008727:Methotrexate