RT Journal Article SR Electronic T1 Determining Gastric Emptying Rate JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 2024 OP 2025 VO 32 IS 10 A1 Robert S. Hattner YR 1991 UL http://jnm.snmjournals.org/content/32/10/2024.3.abstract AB