instruction:
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.
question:
We randomly assigned 28 patients with refractory monosymptomatic nocturnal enuresis to 2 equal groups .
answer:
not found


question:
The latter metabolite is not formed in man through the mono-oxygenase pathway of cytochrome P450 .
answer:
not found


question:
Results indicate that expressive language gains were greater for both treatment groups compared with the control group , and results could not be explained by differences in other interventions in which children participated .
answer:

not found