Dr. Robert Zamenhof graduated with a Ph.D. in applied radiation physics from the Massachusetts Institute of Technology, in Cambridge, Massachusetts, and has spent his 35 year career in the fields of medical physics and nuclear medicine, mainly doing research, teaching, supervising students engaged in dissertations for their M.S. and Ph.D. degrees, and helping federal government agencies in their international activities. He has taught engineering at Boston University, has been a research associate and visiting scientist at MIT, held professorships at Harvard Medical School, Tufts School of Med...