PT - JOURNAL ARTICLE AU - Thad P. Sears TI - Radioisotopes and Radiation DP - 1964 Nov 01 TA - Journal of Nuclear Medicine PG - xix--xix VI - 5 IP - 11 4099 - http://jnm.snmjournals.org/content/5/11/xix.short 4100 - http://jnm.snmjournals.org/content/5/11/xix.full SO - J Nucl Med1964 Nov 01; 5