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: Changes in symptomatology , exercise performance , and left ventricular function were assessed serially during the two-month treatment period .
Example Output: not found

Example Input: One of the reasons physiotherapy services are provided to emergency departments ( EDs ) and emergency extended care units ( EECUs ) is to review patients ' mobility to ensure they are safe to be discharged home .
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