RT Journal Article SR Electronic T1 Esophageal Tracer Retention Simulating Substernal Goiter JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 404 OP 404 VO 18 IS 4 A1 Rajguru, Hanmant L. A1 Poulose, Kattadiyil P. A1 Reba, Richard C. YR 1977 UL http://jnm.snmjournals.org/content/18/4/404.abstract AB