passages.id: 140
passages.type: sentence
passages.text: Epigastric impedance is a non-invasive method used to study gastric emptying time and gastric phasic activity .
entities.id: 141
entities.type: intervention
entities.text: Epigastric impedance
entities.id: 142
entities.type: outcome
entities.text: Epigastric impedance
entities.id: 143
entities.type: outcome
entities.text: gastric emptying time and gastric phasic activity