Folic acid: a new approach to the mechanism of its intestinal absorption.
D000818:Animals; D002250:Carbon Radioisotopes; D005492:Folic Acid / Q000097:blood / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D007082:Ileum / Q000378:metabolism; D007408:Intestinal Absorption; D007413:Intestinal Mucosa / Q000378:metabolism; D007583:Jejunum / Q000378:metabolism; D008297:Male; D010477:Perfusion; D051381:Rats; D014316:Tritium
D002250:Carbon Radioisotopes; D014316:Tritium; D005492:Folic Acid