Chee, C A Vasoactive intestinal polypeptide neuron changes in the senile rat suprachiasmatic nucleus. [electronic resource] - Neurobiology of aging - 307-12 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0197-4580 Standard No.: 10.1016/s0197-4580(88)80070-8 doi Subjects--Topical Terms: Aging--metabolismAnimalsImmunohistochemistryMaleNeurons--analysisRatsSleep, REM--physiologySuprachiasmatic Nucleus--analysisVasoactive Intestinal Peptide--analysis