31. Nuclear medicine became widespread and there was a need to develop a new specialty.32. In the United States, the American Board of Nuclear Medicine was formed in 1972. 33. Gamma rays are also used for diagnostic purposes in nuclear medicine in imaging techniques. 34. She attended school to become a nuclear medicine technologist. 35. Seven smaller reactors are used for research and to produce radioactive isotopes for nuclear medicine . 36. At Howard University he worked and studied Nuclear Medicine . 37. Americium is used in smoke detectors, and several transuranic elements are used in nuclear medicine . 38. He is Head of the Department of Nuclear Medicine of the Wilhelminen Hospital in Vienna. 39. "It tells you a lot about Patty, " says Phyllis Padur, a nuclear medicine technologist. 40. He also was an adviser to the United States Atomic Energy Commission regarding nuclear medicine .