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: In 78 children known to be infected with Ascaris at baseline , the rate of weight gain was 21 per cent greater in children treated with levamisole than in those receiving placebo ( p = .03 ) .

Output: levamisole, placebo


Input: Consider Input: Also , fewer subjects than the controls had significant painful episodes ( 50.0 % versus 92.7 % ) ; febrile illness ( 46.6 % versus 87.3 % ) and admission rate ( 3.4 % versus 34.5 % ) ( p < 0.001 ) .

Output: not found


Input: Consider Input: The Hb increment is somewhat greater with continued weekly epoetin alfa .


Output: epoetin alfa