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]: Repeated-measures analyses within patients assessed drug effects .
[EX A]: not found

[EX Q]: Improvement in outcomes appeared to be more closely associated with the patient 's severity of psychological distress .
[EX A]: not found

[EX Q]: 573 patients who had unrecognized and untreated anxiety identified from the approximately 8,000 patients who completed the waiting room screening questionnaire .
[EX A]:
not found