As you may have noticed, I’ve had to take a couple of breaks presenting this final 2006 ACR session, and have divided it up amongst a few posts over a few days.  There are reasons for this.  1) As I expalined earlier, it is a subject that is near and dear to my heart and so I’m going into detail.   2) These products are widely available and widely used and the debate about their effectiveness deserves some space.  3) I just don’t have the time for sustained writing right now.  There are just too many other things going on.

But I’ll try to post part 4 tomorrow or maybe the next day, so please stay tuned.  I also want to sum up the conference as a whole.  I’ll get there!