dr. frazier as dr. frankenstein is not correct. that's not the person i saw. >> well, when we get to the end of the book it's a cliff-hanger because we're still in the middle of trying to get to at artificial heart and before i ask you about where we are now, i wanted you to give us the numbers so that everybody has a sense of why the quest still matters. so kind of in as heart surgery developed, the heart transplant came to be, and so a lot of people have figured into having the heart transplant and there's preventive medicine. people can improve with exercise and diet so why go to the lengths of developing an art facial heart so give us a sense of the numbers numbers so we kn. >> i'm trying to remember the numbers. 2500 hearts available a year for something like -- available for transplant a year. there's something like 4,000 people a month or so. i have to check the number. it's in the book -- waiting for hears. an enormous lating list and the -- you could die waiting on the list for a transplant. and the other issue is the numb