and while the amputations he has undergone from buerger's disease are very specific to buerger's disease, amputations from smoking are very common in a wide range of people. second, roosevelt smith from virginia, age 51, who's had a heart attack and heart surgery. he was 45 when he was diagnosed. and third, terrie hall from north carolina, who is 45, has had neck cancer, diagnosed at age 40. we will hear presentations from these three individuals and then i believe we'll show all of the ads. so, first, brandon?applause ] >> thank you again for inviting me to speak here today. i am brandon from north dakota. i started smoking when i was 15 years old. peer pressure drove me to pick up that first cigarette. just three years later at the age of 18, i was diagnosed with buerger's disease, a disease that affects young or middle-aged smokers between the ages of 20 and 40. it causes inflammation, clotting of your arteries and veins, resulting in reduced circulation. because of that diagnosis, i suffered extreme pain, multiple sores and even gangrene. by the time i was 19, i had lost my left leg,