RT Journal Article SR Electronic T1 Pinhole SPECT: Ultra-High Resolution Imaging for Small Animal Studies JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 2287 OP 2289 VO 36 IS 12 A1 David A. Weber A1 Marija Ivanovic YR 1995 UL http://jnm.snmjournals.org/content/36/12/2287.abstract AB