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:
Since the results were essentially identical between the techniques , it seems that comparable pathophysiological factors affect TLCO during breath holding and constant exhalation .
answer:
breath holding, constant exhalation


question:
The findings indicate that this method of reporting symptoms and functioning status to primary care physicians did not significantly change patient outcomes .
answer:
not found


question:
Although an increasing number of group-based programs for the improvement of social skills have been described , randomized controlled trials are needed to evaluate their efficacy .
answer:

not found


