title: A note on perfusion with labelled compounds to determine intestinal absorption.
mesh_terms: D000818:Animals; D002110:Caffeine / Q000032:analysis*; D002247:Carbon Isotopes; D005260:Female; D007408:Intestinal Absorption / Q000502:physiology*; D010477:Perfusion; D010656:Phenylephrine / Q000032:analysis*; D011874:Radiometry; D051381:Rats; D012459:Salicylates / Q000032:analysis*
chemical_list: D002247:Carbon Isotopes; D012459:Salicylates; D010656:Phenylephrine; D002110:Caffeine