RT Journal Article SR Electronic T1 The Authors' Reply JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 914 OP 915 VO 15 IS 10 A1 Sverker Nordlander A1 Per-Erik Wiklund A1 Per-Erik Åsard YR 1974 UL http://jnm.snmjournals.org/content/15/10/914.abstract AB