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.
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Question: Relative to children in the wait-list group , program participants showed greater improvements in social skills over the course of the intervention , as indicated by parent-report measures .

Answer: not found


Question: Language outcome in autism : randomized comparison of joint attention and play interventions .

Answer: attention, play


Question: The origin of the gastric phasic activity patterns is unknown , but they may be related to electrical control activity .

Answer:
not found