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: After three weekly doses of epoetin alfa 40,000 U , a dose of 120,000 U can be administered safely once every 3 weeks without increasing transfusion needs or sacrificing QOL .
Example Output: epoetin alfa

Example Input: However , deterioration in some responders with time suggests the need for maintenance protocols .
Example Output: not found

Example Input: There were 4 cases with possible systemic fungal infection in the itraconazole group , and there were 8 possible and 3 probable cases in the fluconazole group .
Example Output:
itraconazole, fluconazole

