%0 Journal Article %A B. Leonard Holman %A Paulo A. Carvalho %A Robert E. Zimmerman %A Keith A. Johnson %A Sabah S. Tumeh %A Andrew P. Smith %A Sabastian Genna %T Brain Perfusion SPECT Using an Annular Single Crystal Camera: Initial Clinical Experience %D 1990 %J Journal of Nuclear Medicine %P 1456-1461 %V 31 %N 9 %U https://jnm.snmjournals.org/content/jnumed/31/9/1456.full.pdf