Recording of the medical application of ionizing radiation – Part 2: Diagnosis and therapy using unsealed radioactive materials
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 05/01/2003

Recording of the medical application of ionizing radiation – Part 2: Diagnosis and therapy using unsealed radioactive materials
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 03/01/2012