RT Journal Article SR Electronic T1 Letter to editor re "Waxing and Waning Presentation of Isolated Cardiac Sarcoidosis on Sequential 18F-FDG-PET Exams" JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP jnmt.120.254276 DO 10.2967/jnmt.120.254276 A1 David Birnie YR 2020 UL http://tech.snmjournals.org/content/early/2020/09/03/jnmt.120.254276.abstract AB