RT Journal Article SR Electronic T1 A Thallium-201 SPECT Artifact Associated with Leg Flexion: Case Report JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 31 OP 32 VO 19 IS 1 A1 Plankey, Michael W. A1 Clark, M. William A1 Strickland, M. Diane YR 1991 UL http://tech.snmjournals.org/content/19/1/31.abstract AB