Welcome to Debunk-it.Org
Currently, there are a number of places where you can go from here:
Local Anesthetic Presentations
Simplified Spinal Anesthesia
For the BWH new resident spinal lecture 2005 click on the Education Corner link.
For the BU new resident spinal/epidural, and pharmacology/toxicity of local anesthetics click on the Education Corner link.
Simplified OB Anesthesia
Breakwater Designing and Building