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.

Example Input: A set of five factors were found to consistently predict depression at the following assessment .
Example Output: not found

Example Input: After adjusting for child demographic characteristics and non-ASD-associated illnesses , ASD was associated with $ 3020 ( 95 % confidence interval [ CI ] : $ 1017- $ 4259 ) higher health care costs and $ 14,061 ( 95 % CI : $ 4390- $ 24,302 ) higher aggregate non-health care costs , including $ 8610 ( 95 % CI : $ 6595- $ 10,421 ) higher school costs .
Example Output: not found

Example Input: Antipyretic treatment had no effect on fever clearance and therefore should be used cautiously in the treatment of malaria .
Example Output:
not found

