Use of a radioactive tracer to study a sustained release dosage form in humans: indications, modalities and limitations.
D000328:Adult; D002247:Carbon Isotopes; D003692:Delayed-Action Preparations; D006801:Humans; D009539:Nicotinic Acids / Q000008:administration & dosage*
D002247:Carbon Isotopes; D003692:Delayed-Action Preparations; D009539:Nicotinic Acids