voca of that,. do you have any follow-up? >> no, mr. chairman. i just wanted to -- well, first of all, thank you for what you just said. and your comment about concussions and is sports. i agree. but i just wanted to -- if i could ask unanimous consent, to submit the statement of our ranking member, mr. waxman. >> without objection, so ordered. that concludes our hearing. the members may give you questions. we ask that you respond to those questions once you get them promptly. and i remind members that they have ten business days to submit questions for the record. and that means they should submit their questions by the close of business on monday, april the 2nd. excellent hearing. wonderful testimony. we thank our expert panel for your very important testimony and answers to our questions. subcommittee is adjourned. >>> this is c-span 3. with politics and public affairs programming throughout the week, and every weekend, 48 hours of people and events telling the american story on american history tv. get our schedules and see past programs at o