The proliferation of radioactive materials in industry, in diagnostic and therapeutic medicine, in scientific and medical research, in the military, and as a source of energy has increased the likelihood of accidental exposure to ionizing radiation. Further, the number of individuals exposed in accidents, such as Chernobyl, U. S. S. R.; Goiania, Brazil; and San Salvador, El Salvador, underscores the potential for large-scale radiation accidents. Because of these accidents, health care providers have found themselves treating patients with acute radiation injuries and subsequent complications....