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.

[Q]: The 101 eligible cases ( bestatin : 48 , control : 53 ) were analyzed ; the bestatin group achieved longer remission than the control group and a statistically significant longer survival .
[A]: bestatin


[Q]: However , deterioration in some responders with time suggests the need for maintenance protocols .
[A]: not found


[Q]: However , there was no difference in the improvements made by children in the intervention and control conditions on facial expression and body-posture recognition measures .
[A]:
not found


