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 Q]: In 78 children known to be infected with Ascaris at baseline , the rate of weight gain was 21 per cent greater in children treated with levamisole than in those receiving placebo ( p = .03 ) .
[EX A]: 78 children known to be infected with Ascaris

[EX Q]: Patients were scanned twice , under either an acute dose of Fluoxetine or placebo in a double-blind , placebo-controlled randomized design .
[EX A]: not found

[EX Q]: After adjusting for child demographic characteristics and non-ASD-associated illnesses , ASD was associated with $ 3020 ( 95 % confidence interval [ CI ] : $ 1017- $ 4259 ) higher health care costs and $ 14,061 ( 95 % CI : $ 4390- $ 24,302 ) higher aggregate non-health care costs , including $ 8610 ( 95 % CI : $ 6595- $ 10,421 ) higher school costs .
[EX A]:
not found