Panel A (top left) shows a patient with rapid gastric
emptying at 1 hour only, panel B (top right) with rapid gastric
emptying at 2 hours only, panel C (lower left) with rapid
gastric emptying at 1 and 2 hours, and panel D (bottom right)
with normal gastric emptying at 1 and 2 hours. GE1, 2, and 4 denote gastric
emptying at 1, 2, and 4 hours. The numbers in parentheses represent the
sex-matched normal values.