Farkas, E Periaqueductal gray matter projection to vagal preganglionic neurons and the nucleus tractus solitarius. [electronic resource] - Brain research Aug 1997 - 257-61 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. ISSN: 0006-8993 Standard No.: 10.1016/s0006-8993(97)00592-1 doi Subjects--Topical Terms: AnimalsAutonomic Fibers, Preganglionic--cytologyCholine O-Acetyltransferase--metabolismHistocytochemistryNeural Pathways--cytologyParasympathetic Nervous System--cytologyPeriaqueductal Gray--enzymologyPhytohemagglutininsRatsRats, Sprague-DawleySolitary Nucleus--cytologyVagus Nerve--cytology