RT Journal Article SR Electronic T1 An Automated Method for Delineating a Reference Region Using Masked Volumewise Principal-Component Analysis in 11C-PIB PET JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine DO 10.2967/jnmt.108.054296 A1 Razifar, Pasha A1 Engler, Henry A1 Ringheim, Anna A1 Estrada, Sergio A1 Wall, Anders A1 Långström, Bengt YR 2009 UL http://tech.snmjournals.org/content/early/2009/02/17/jnmt.108.054296.abstract AB