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:
CALGB 8642 randomizes previously untreated metastatic breast cancer patients either to one of several Phase II agents given for up to four cycles and then followed by standard cyclophosphamide-doxorubicin-5-fluorouracil , or to immediate treatment with standard cyclophosphamide-doxorubicin-5-fluorouracil .

Ex Output:
untreated metastatic breast cancer patients


Ex Input:
This study aimed to investigate the course of depression for patients with recently diagnosed rheumatoid arthritis ( RA ) and to investigate predictors of depression .

Ex Output:
patients with recently diagnosed rheumatoid arthritis ( RA


Ex Input:
This report deals only with amonafide as a Phase II agent .

Ex Output:

not found