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: Inverse Effect of Fluoxetine on Medial Prefrontal Cortex Activation During Reward Reversal in ADHD and Autism .
Example Output: Fluoxetine

Example Input: Seventeen patients on chronic digitalis and diuretic therapy were randomized to receive either flosequinan ( n = 9 ) or placebo ( n = 8 ) in a double-blind fashion .
Example Output: flosequinan, placebo

Example Input: Followup was done with diuretic scanning at 3 , 6 , 9 and 12 months and then yearly , and thereafter with diuretic renography .
Example Output:
not found