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.

There were no differences between 3CM and usual care in symptoms or functioning .
not found

Children with parent-reported ASD had higher levels of health care office visits and prescription drug use compared with children without ASD ( P < .05 ) .
not found

Of the group 2 patients 64 % preferred 2 weeks of stenting .

not found