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: Language outcome in autism : randomized comparison of joint attention and play interventions .
Example Output: attention, play

Example Input: MLMs indicated a slight increase in depressive symptoms over time in the sample as a whole .
Example Output: not found

Example Input: The patients suffered from partial or total intestinal obstruction , necrotizing enterocolitis or pyloric stenosis.All infants were fasting and studied during periods of at least one hour .
Example Output:
not found