PT - JOURNAL ARTICLE AU - Gerard J. Gillen AU - Thomas E. Hilditch AU - Alex T. Elliott TI - Nonisotropic Point Spread Function as a Result of Collimator Design and Manufacturing Defects DP - 1988 Jun 01 TA - Journal of Nuclear Medicine PG - 1096--1100 VI - 29 IP - 6 4099 - http://jnm.snmjournals.org/content/29/6/1096.short 4100 - http://jnm.snmjournals.org/content/29/6/1096.full SO - J Nucl Med1988 Jun 01; 29