Specific Activity 5 : Unit pertaining to the disintegrations per gram of a radioisotope (Mettler FA Jr, Upton AC: Medical Effects of Ionizing Radiation, 3rd ed. Philadelphia, Pa: Saunders Elsevier, 2008, page 554)
U.S. Department of Health and Human Services, Office of the Assisstant Secretary for Preparedness and Response, National Library of Medison, Radiation Emergency Medical Management (REMM), Dictionary of Radiation Terms, Washington, DC, USA 2014. http://www.remm.nlm.gov/dictionary.htm, (Dzstr/ Rad Emr - Amer) {822}