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: However , to our knowledge , there have been no studies using all these measures together as an adjuvant antidepressant strategy .

A: not found
****
Q: 353 children with positive throat swabs for GABHS were randomised to amoxicillin ( n = 177 ) or penicillin V ( n = 176 ) .

A: not found
****
Q: They wore a wrist-watch-like actimetry sensor to measure physical activity and sun exposure 24 hours a day .

A:
not found
****