thank you it's a pleasure to be here I will give a talk for probably only about 30 minutes and we're really going to talk primarily about the basics of stroke and then I want to leave plenty of time for people to ask questions about topics of their interest stroke is a very broad topic lots of different research going on so hard to summarize it all in a short talk but be happy to address anything that's that's on your mind so you heard a little bit about me I actually came to Stanford first in 1984 right after graduating Medical