PT - JOURNAL ARTICLE AU - R. Sear AU - P. M. Dean TI - Unidirectional versus Bidirectional Scanning DP - 1971 Nov 01 TA - Journal of Nuclear Medicine PG - 768--769 VI - 12 IP - 11 4099 - http://jnm.snmjournals.org/content/12/11/768.2.short 4100 - http://jnm.snmjournals.org/content/12/11/768.2.full SO - J Nucl Med1971 Nov 01; 12