PT - JOURNAL ARTICLE AU - Michael Ljungberg AU - Sven-Erik Strand TI - Attenuation Correction in SPECT Based on Transmission Studies and Monte Carlo Simulations of Build-Up Functions DP - 1990 Apr 01 TA - Journal of Nuclear Medicine PG - 493--500 VI - 31 IP - 4 4099 - http://jnm.snmjournals.org/content/31/4/493.short 4100 - http://jnm.snmjournals.org/content/31/4/493.full SO - J Nucl Med1990 Apr 01; 31