RT Journal Article SR Electronic T1 AUTHOR'S REPLY JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 117 OP 118 VO 2 IS 3 A1 Wells, L. David YR 1974 UL http://tech.snmjournals.org/content/2/3/117.3.abstract AB