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.

[EX Q]: Little evidence has been published for the nondiabetic population .
[EX A]: not found

[EX Q]: These were initial level of depression , disability , pain , beliefs about the consequences of arthritis and coping strategies .
[EX A]: not found

[EX Q]: This was a randomised non-inferiority trial carried out in a school-based clinic in New Zealand .
[EX A]:
not found