TASK DEFINITION: In medical studies, treatments are tested within a group of study participants. You will be given a sentence of a study report in which your task is to list the phrases that give information about the participants of the study. You should list the phrases in the same order that they appear in the text, separated by commas. If no information about the participants is mentioned, just output "not found". Relevant information about participants include: gender, medical conditions, location, number of people participating. Do not contain participant mentions without relevant information.
PROBLEM: The patients suffered from partial or total intestinal obstruction , necrotizing enterocolitis or pyloric stenosis.All infants were fasting and studied during periods of at least one hour .

SOLUTION: partial or total intestinal obstruction , necrotizing enterocolitis or pyloric stenosis.All infants

PROBLEM: A new immunomodulating agent , bestatin ( INN : Ubenimex has low toxicity even after long-term oral administration and has significant modifications in immunological response .

SOLUTION: not found

PROBLEM: Epigastric impedance is a non-invasive method used to study gastric emptying time and gastric phasic activity .

SOLUTION:
not found