miss halverson. punch the button. >> i do not know how many people you're thinking will need to be included in the study. there is a physician in the chicago area that has a practice of about 35,000 patients and many of them choose not to vaccinate, and their offices and rage is next to nothing. there are populations of people -- and the rate -- the autism rate is next to nothing. the population with this doctor is very broad based. it is not people from every walk of life. >> i do not know about that. >> let me just be very clear. i am representing what we know about the scientific evidence so far. that is unequivocal. it is a not thecd cdc and nih. multiple studies have looked at this. this has been looked at over and over again. 16 large-scale studies have looked at this. whether you read the studies or listen to the institute of medicine -- >> looking at the connection, the possibility of a connection between the vaccination with without a particular formulation can be prevalence of autism. wheth

pickens boyd from minnesota and dana halverson from iowa. we have covered all the aspects we wanted to cover on autism with these two panels. we will open up with dr. thomas insel from the institute of mental health, not a stranger to this subcommittee. dr. insel, welcome. as with all the people testifying here, your statements will be made part of the record in their entirety. go-ahead and proceed as you so desire. >> thank you, mr. chairman. it is a pleasure and honor to be here with the other panelists. i know this is a busy time for you and your colleagues and we appreciate your taking time in the middle of the summer just before recess to hear about the latest research and challenges with autism. my brief is to get you a quick update on the research since we last met which was two years ago and i can tell you this has been an extraordinary period with lots of exciting progress. i will try to review that. the testimony i hope will be submitted for the record. i thought i would take you through three questions. what do we know at this poi

halverson?>> i was going to -- >> punch the button on that. >> i was just going to mention, i don't know how many people you're thinking would need to be included in a study like this. but there's a physician in, i believe, the chicago area that has a practice of about 35,000 patients and many of them choose not to vaccinate and their autism rate is next to nothing. and so there are populations of people who are -- who have that documentation. i agree, i don't think it's going to be that hard to find, you know, the amish. maybe it's more of a closed situation but this population with dr. isenstein is very broad-based. it's not from people from every walk of life. >> so let me just be very clear on this point because i'm representing what we know about the scientific evidence so far. and that's really unequivocal. it's not that cdc and nih and actually now multiple european and japanese studies haven't looked at this. this problem has been looked at over and over again. 16 large-scale studies tha