Functionally selective signaling for morphine and fentanyl antinociception and tolerance mediated by the rat periaqueductal gray.

by Michael M Morgan, Rachel A Reid, Kimber A Saville
Published 2014-01-01

Acute hyperalgesia and delayed dry eye after corneal abrasion injury

by Deborah M. Hegarty, Sam M. Hermes, Michael M. Morgan, Sue A. Aicher
Published 2018-08-01

Behavioral Consequences of Delta-Opioid Receptor Activation in the Periaqueductal Gray of Morphine Tolerant Rats

by Michael M. Morgan, Michelle D. Ashley, Susan L. Ingram, MacDonald J. Christie
Published 2009-01-01