wow, so many of you are going! Actually I'm going tonight too, I was on the waiting list and they just confirmed the availability to me late last night.
from the talk, there is nothing new for me. But I am glad that finally somebody mentioned Zinc during this kind of talk.
A little tips for you, there was a research showed that the Zinc concentration of mom is lower in those who take very long for delivery (e.g. more than 20hrs) compare to those who's delivery is around 10 hrs or less. So, eat well!