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:
We expect the patients in the active recommendations group to experience a greater improvement in their depressive symptoms .

Ex Output:
not found


Ex Input:
A total of 57 consecutive patients with primary ureteropelvic junction obstruction were randomized to undergo 7/14Fr internal endopyelotomy stent placement for 2 ( group 1 ) and 4 ( group 2 ) weeks .

Ex Output:
57 consecutive patients with primary ureteropelvic junction obstruction


Ex Input:
In patients with neutrophil counts of > 0.1 x 10 ( 9 ) /L lasting for more than 4 weeks , the frequency of infection in the fluconazole group ( 5 of 9 patients ) was significantly higher than in the itraconazole group ( 0 of 7 patients ; P = .03 ) .

Ex Output:

not found