RT Journal Article SR Electronic T1 REPLY TO "IMPURITIES IN A 99mTc-LUNG IMAGING KIT" JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 55 OP 56 VO 5 IS 1 A1 STEINMAN, Steve YR 1977 UL http://tech.snmjournals.org/content/5/1/55.abstract AB