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.

Input: Consider Input: No clinically serious adverse events were observed in any of the groups .

Output: not found


Input: Consider Input: Weights and heights were measured at the tri-monthly treatment visits for a period of one year .

Output: not found


Input: Consider Input: Among the 273 children who were seen and weighed at the one-year follow-up visit , the rate of weight gain was 8 per cent greater for those receiving levamisole than for placebo-treated controls ( p = .06 ) .


Output: levamisole, placebo-treated