RT Journal Article SR Electronic T1 TECHNOLOGIST NEWS JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 1 OP 10 VO 1 IS 2 A2 Gaigals, C.C. A2 Houston, J.L. A2 Simpson, M.F. YR 1973 UL http://tech.snmjournals.org/content/1/2/1.abstract AB