RT Journal Article SR Electronic T1 Estimation of Thyroid Depth and Correction for I-123 Uptake Measurements JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 919 OP 924 VO 18 IS 9 A1 Peter M. Martin A1 F. David Rollo YR 1977 UL http://jnm.snmjournals.org/content/18/9/919.abstract AB