PT - JOURNAL ARTICLE ED - Society of Nuclear Medicine TI - Placement DP - 1981 Mar 01 TA - Journal of Nuclear Medicine Technology PG - 12A--12A VI - 9 IP - 1 4099 - http://tech.snmjournals.org/content/9/1/12A.short 4100 - http://tech.snmjournals.org/content/9/1/12A.full SO - J. Nucl. Med. Technol.1981 Mar 01; 9