RT Journal Article SR Electronic T1 THE ESSENCE OF THE TECHNOLOGIST SECTION JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 109 OP 109 VO 7 IS 2 A1 Alexander, George A. YR 1979 UL http://tech.snmjournals.org/content/7/2/109.abstract AB