PT - JOURNAL ARTICLE AU - Ronald A. Seltzer TI - To the editor DP - 1964 Jan 01 TA - Journal of Nuclear Medicine PG - 76--77 VI - 5 IP - 1 4099 - http://jnm.snmjournals.org/content/5/1/76.2.short 4100 - http://jnm.snmjournals.org/content/5/1/76.2.full SO - J Nucl Med1964 Jan 01; 5