PT - JOURNAL ARTICLE AU - Thomas, Kathy TI - TWENTY YEARS AND GROWING DP - 1990 Jun 01 TA - Journal of Nuclear Medicine Technology PG - 119--120 VI - 18 IP - 2 4099 - http://tech.snmjournals.org/content/18/2/119.short 4100 - http://tech.snmjournals.org/content/18/2/119.full SO - J. Nucl. Med. Technol.1990 Jun 01; 18