Normal and Pathological

Could someone give me a brief synopsis of Foucault's introduction to
Canguilhem's The Normal and the Pathological? Also, has it been published
in English anywhere other than the Canguilhem book?

Thanks muchly.

Matthew

---Matthew A. King---Department of Philosophy---York University, Toronto---
"We get into the habit of living before acquiring the habit of thinking."
------------------------------(Albert Camus)-------------------------------