RT Journal Article SR Electronic T1 Optimization of the Gray Scale for Photoscanners: Concise Communication JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 57 OP 59 VO 20 IS 1 A1 Chang, Wei A1 Blau, Monte YR 1979 UL http://jnm.snmjournals.org/content/20/1/57.abstract AB