TASK DEFINITION: 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.
PROBLEM: 573 patients who had unrecognized and untreated anxiety identified from the approximately 8,000 patients who completed the waiting room screening questionnaire .

SOLUTION: not found

PROBLEM: The patients were followed for change in outcome measures during the five-month study period .

SOLUTION: not found

PROBLEM: The relation was equally strong in patients with severe pulmonary disease ; for patients with FEV1 < 1.51 the mean difference was 0.21 ( 0.80 ) mmol/min/kPa .

SOLUTION:
not found