CHAIRMAN BROWN: Thank you, Dr. Freas.

I've worn my happy shirt this morning to readjust the tone after yesterday's very difficult meeting, not because of personalities, I think, but because the topic was an extremely difficult one to deal with, and I'd like to reiterate my appreciation to the Committee for whacking away at it as best they could and arriving at some sort of recommendation that the FDA can now consider.

Today, on the other hand, I'm looking forward to a relatively easy deliberation, and before we start the main topic, which will be the safe sourcing of products derived from sheep and goat that are used in the manufacture of FDA regulated products, we will very briefly look again at the topic of precautions in the processing of human dura mater, which the Committee considered in detail last year.

And for that, we have a presentation by Dr. Charles Durfor, Center for Devices and Radiological Health in the FDA.

Dr. Durfor.