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.

Input: Consider Input: A comparison of different antipyretics in children with malaria showed a small effect of naproxen , but not of metamizol , on the reduction of fever peaks .

Output: children with malaria


Input: Consider Input: 573 patients who had unrecognized and untreated anxiety identified from the approximately 8,000 patients who completed the waiting room screening questionnaire .

Output: 8,000 patients, waiting room screening questionnaire


Input: Consider Input: Results indicated that there was a significant decrease in both the C-STAI score ( F = 4.66 , P < 0.05 ) and the WHOQoL score ( F = 4.74 , P < 0.05 ) in the experimental group .


Output: not found