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.

Q: Hence , we hypothesize that specific airway resistance changes ( ΔsRAW ) should better characterize the acute response to bronchodilators .

A: not found
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Q: Gastric dysrhythmia in infants with gastrointestinal diseases measured by epigastric impedance .

A: infants with gastrointestinal diseases
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Q: fMRI data showed that , under placebo , ASD boys underactivated medial prefrontal cortex ( mPFC ) , compared with control and ADHD boys .

A:
ASD boys, ADHD boys
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