American Paul C. Lauterbur raises his glass while being toasted by friends and colleagues in Champaign, Ill., Monday, Oct, 6, 2003, after winning the 2003 Nobel Prize for medicine for discoveries leading to the development of MRI, now relied on by doctors for getting a detailed look into their patients' bodies. Lauterbur, 74, of the University of Illinois at Urbana-Champaign and Sir Peter Mansfield, 69, of the University of Nottingham in England were honored for work they did independently of each other in the 1970s. (AP Photo/Seth Perlman)