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

Answer: children with high-functioning autism


Question: This report is restricted to 7674 participants with albuminuria data at baseline and at follow-up .

Answer: 7674 participants with albuminuria data


Question: Language outcome in autism : randomized comparison of joint attention and play interventions .

Answer:
not found