Exploratory behavior and withdrawal signs in crayfish: chronic central morphine injections and termination effects
Behavioural Brain Research (2014) - Comments
pubmed: 24512767  doi: 10.1016/j.bbr.2014.01.026  issn: 0166-4328  issn: 1872-7549 

Adebobola I Nathaniel, Marvin Okon, Robert Huber, Thomas I. Nathaniel