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]: Aquatic exercisers reported equal ( QWB ) or better ( CHDR , HAQ , PQOL ) health-related quality of life compared with controls .
[EX A]: not found

[EX Q]: Regression analyses estimated the association between ASD diagnosis and cost , controlling for child gender , age , race/ethnicity , insurance status , household income , country region and urban/rural classification , and non-ASD-related illnesses .
[EX A]: not found

[EX Q]: Referral occurred at any stage of the patients ' EECU admission .
[EX A]:
not found