RT Journal Article SR Electronic T1 Multiple Swallow Test for the Quantitative and Qualitative Evaluation of Esophageal Motility Disorders JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1365 OP 1370 VO 32 IS 7 A1 Klaus Tatsch A1 Wilhelm Schroettle A1 Carl-Martin Kirsch YR 1991 UL http://jnm.snmjournals.org/content/32/7/1365.abstract AB