Thank you, Madam Chair.
Thank you very much, gentlemen, for being with us today.
Dr. Meulien, I wanted to pick up on this issue of the implications of prevention from what you're discovering. When you started you talked about a spectrum of diseases. There's the rare disease on one end, and on the other end there are these complex ones that are influenced by environmental circumstances. When we get into the issue of identifying certain diseases that are impacted by environmental conditions, it seems to me there's a whole range of ethical issues that arise out of that. When you're talking about prevention, what kinds of things are you talking about in practical terms when you study this stuff?