By Lydia Nuzum When Dr. Rudolph Tanzi was a teenager, he knew he wanted to be a clinician - that is, until he heard his first scientific lecture and realized he wanted to be a researcher."If it wasn't for the National Youth Science Camp, where I represented the state of Rhode Island, where I grew up, I may have just - I probably would have become a clinician, treating patients, which would have been fine, but it wouldn't have been what I'm doing now," Tanzi said.