PT - JOURNAL ARTICLE ED - , TI - Placement DP - 1985 Mar 01 TA - Journal of Nuclear Medicine Technology PG - 20A--20A VI - 13 IP - 1 4099 - http://tech.snmjournals.org/content/13/1/20A.short 4100 - http://tech.snmjournals.org/content/13/1/20A.full SO - J. Nucl. Med. Technol.1985 Mar 01; 13