PT - JOURNAL ARTICLE AU - Hidalgo, John U. TI - President's Letter DP - 1965 Apr 01 TA - Journal of Nuclear Medicine PG - vi--vi VI - 6 IP - 4 4099 - http://jnm.snmjournals.org/content/6/4/vi.short 4100 - http://jnm.snmjournals.org/content/6/4/vi.full SO - J Nucl Med1965 Apr 01; 6