In medical studies, treatments are tested 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 give information about the participants of the study. You should list the phrases in the same order that they appear in the text, separated by commas. If no information about the participants is mentioned, just output "not found". Relevant information about participants include: gender, medical conditions, location, number of people participating. Do not contain participant mentions without relevant information.

[Q]: In recent years some studies have been published supporting the efficacy of light exposure , physical activity , sleep control and a Mediterranean diet pattern on the improvement or prevention of depression .
[A]: not found


[Q]: On two days , 60 COPD patients underwent dyspnea evaluation ( VAS score ) and pulmonary function testing at baseline and one hour after placebo or 300μg indacaterol administration .
[A]: 60 COPD patients


[Q]: Patient outcomes were measured as changes in global anxiety scores , functioning and well-being , and patients ' reports of global improvements .
[A]:
not found