RT Journal Article SR Electronic T1 Collimator Comparisons Made Easy JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 25 OP 30 VO 1 IS 3 A1 Muilenburg, Mark I. YR 1973 UL http://tech.snmjournals.org/content/1/3/25.abstract AB