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:
Subjects who were > or =50 % adherent to exercise were less likely to lose BMD at the total hip ( chi-square [ 1 ] = 4.66 , p = 0.03 ) and femoral neck ( chi-square [ 1 ] = 4.63 , p = 0.03 ) .

Ex Output:
not found


Ex Input:
Social skills improvement in children with high-functioning autism : a pilot randomized controlled trial .

Ex Output:
children with high-functioning autism


Ex Input:
Assessment instructions included the Chinese State-Trait Anxiety Inventory ( C-STAI ) , the Quality of Life Index for Colostomy ( QoL-Colostomy ) and the Hong Kong Chinese version of the World Health Organisation Quality of Life Scale ( WHOQoL ) .

Ex Output:

not found