The influence of pH, low sodium ion concentration and methotrexate on the jejunal-surface pH: a model for folic acid transfer.
D000818:Animals; D005492:Folic Acid / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D007413:Intestinal Mucosa / Q000187:drug effects / Q000378:metabolism*; D007583:Jejunum / Q000187:drug effects / Q000378:metabolism*; D007700:Kinetics; D008727:Methotrexate / Q000494:pharmacology*; D051381:Rats; D012964:Sodium / Q000494:pharmacology*
D005492:Folic Acid; D012964:Sodium; D008727:Methotrexate