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.

[Q]: For the QoL-Colostomy , however , there was no significant difference between the control and experimental groups .
[A]: not found


[Q]: Followup was done with diuretic scanning at 3 , 6 , 9 and 12 months and then yearly , and thereafter with diuretic renography .
[A]: not found


[Q]: Anti-emetic efficacy of prophylactic granisetron compared with perphenazine for the prevention of post-operative vomiting in children .
[A]:
granisetron, perphenazine