Pearse, A G The diffuse neuroendocrine system: peptides, amines, placodes and the APUD theory. [electronic resource] - Progress in brain research 1986 - 25-31 p. digital Publication Type: Journal Article ISSN: 0079-6123 Standard No.: 10.1016/s0079-6123(08)60229-0 doi Subjects--Topical Terms: APUD Cells--physiologyAnimalsBirds--physiologyChick EmbryoHumansMiceNeurotransmitter Agents--physiologyRats