RT Journal Article SR Electronic T1 Optimizing Longitudinal Amyloid-β PET Measurement: The Challenges of Intensity Normalization JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1581 OP 1582 DO 10.2967/jnumed.118.212662 VO 59 IS 10 A1 Landau, Susan M. YR 2018 UL http://jnm.snmjournals.org/content/59/10/1581.abstract AB