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]: Chronic vasodilator therapy with flosequinan in congestive heart failure .
[A]: congestive heart failure


[Q]: There were no differences between 3CM and usual care in symptoms or functioning .
[A]: not found


[Q]: Participants were 195 Veterans .
[A]:
195 Veterans