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]: Depressive symptoms and biochemically verified abstinence were assessed 1 week prior to and 2 , 8 , 16 , and 26 weeks after quit date .
[EX A]: not found

[EX Q]: Stent related symptoms were present in a good proportion of patients in groups 1 and 2 but there was a significant difference in the incidence of urinary tract infections ( 11.5 % versus 38.1 % , p = 0.04 ) .
[EX A]: not found

[EX Q]: To estimate the associations between autism spectrum disorder ( ASD ) diagnoses and service use , caregiver time , and cost outcomes .
[EX A]:
not found