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.

Example Input: Before and after the 12 week supplementation period , subjects cycled for 45 min at submaximal intensity ( 50 % maximal workload capacity ) .
Example Output: cycled

Example Input: This report is restricted to 7674 participants with albuminuria data at baseline and at follow-up .
Example Output: not found

Example Input: We evaluated the early clinical and urodynamic results of posterior tibial nerve stimulation in patients with refractory monosymptomatic nocturnal enuresis .
Example Output:
not found