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.

Input: Consider Input: Aquatic exercisers reported equal ( QWB ) or better ( CHDR , HAQ , PQOL ) health-related quality of life compared with controls .

Output: not found


Input: Consider Input: Forty-nine children with AS were recruited to participate and randomly assigned to intervention ( n = 26 ) or wait-list control ( n = 23 ) conditions .

Output: not found


Input: Consider Input: This study reports results of a randomized controlled trial aimed at joint attention ( JA ) and symbolic play ( SP ) in preschool children with autism , with prediction to language outcome 12 months later .


Output: preschool children with autism