RT Journal Article SR Electronic T1 Quality Assurance For Diagnostic Imaging Equipment: NCRP Report #99 JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 222 OP 223 VO 17 IS 4 A1 Cradduck, T.D. YR 1989 UL http://tech.snmjournals.org/content/17/4/222.2.abstract AB