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 Input:
Improvement in outcomes appeared to be more closely associated with the patient 's severity of psychological distress .

Ex Output:
not found


Ex Input:
Identifying patients at high risk for neutropenic complications during chemotherapy for metastatic breast cancer with doxorubicin or pegylated liposomal doxorubicin : the development of a prediction model .

Ex Output:
patients at high risk for neutropenic complications during chemotherapy for metastatic breast cancer


Ex Input:
Aquatic exercise exceeded $ 50,000 per QALY gained using the community-weighted outcome but fell below this arbitrary budget constraint when using the participant-weighted measure .

Ex Output:

not found