Before beginning this section, jot down your answers to the following questions:
Then look at these posters.
What is good?
What is bad
Start by clicking here.
Copyright © 1995 Tutis Vilis Department of Physiology and Pharmacology University of Western Ontario London Ontario Canada
Created 28 Sept 1995 Last updated 10 January 2007 Comments welcome: tutis.vilis@schulich.uwo.ca