TY - RPRT TI - Is aging preprogrammed? Observations from the brain/gut axis. AU - R J Greenstein AU - M M Ybanez AU - R L Zhang AU - W A Bauman PY - 1991 DO - 10.1016/0047-6374(91)90010-w UR - https://pubmed.ncbi.nlm.nih.gov/1726697/ ID - 1726697 ER -