RT Journal Article SR Electronic T1 Validation of the Circular Harmonic Transform (CHT) Algorithm for Quantitative SPECT JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 141 OP 150 VO 32 IS 1 A1 William G. Hawkins A1 Nai-Chuen Yang A1 Peter K. Leichner YR 1991 UL http://jnm.snmjournals.org/content/32/1/141.abstract AB