In medical studies, the efficacy of medical treatments (called interventions) is evaluated 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 describe the intervention(s) of the study. You should list the phrase in the same order that they appear in the text, separated by commas. If no information about the interventions is mentioned, just answer with "not found". Interventions are: a specific drug, surgery, talking therapy, a lifestyle modification, control or placebo treatment. Do not include details, dosages, frequency and duration, intervention mentions that are not in an informative span of text.

[EX Q]: All participants received medical/nursing care as required .
[EX A]: not found

[EX Q]: At 3-month followup the number of patients with a partial or full response in group 1 had decreased from 11 ( 78.6 % ) to 6 ( 42.9 % ) .
[EX A]: not found

[EX Q]: Using epigastric impedance we found that infants with partial or total intestinal obstruction had gastric phasic activity , which was not found in the control infants .
[EX A]:
not found