RT Journal Article SR Electronic T1 Manual on Radiation Protection in Hospitals and General Practice, Vol 4: Radiation Protection in Dentistry JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1244 OP 1244 VO 18 IS 12 A1 Donald F. Logsdon, Jr. YR 1977 UL http://jnm.snmjournals.org/content/18/12/1244.abstract AB