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]: High-functioning autism ( HFA ) is characterized by persistent impairment in social interaction despite the absence of mental retardation .
[EX A]: not found

[EX Q]: Accordingly , the current study examined within-person covariation between time-varying abstinence and depressive symptom in a multilevel model ( MLM ) , which allowed for transitions between smoking statuses within a participant .
[EX A]: not found

[EX Q]: Patients could not have visceral crisis .
[EX A]:
not found