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.

To estimate the associations between autism spectrum disorder ( ASD ) diagnoses and service use , caregiver time , and cost outcomes .
not found

In COPD patients , reversibility is currently evaluated from the changes of forced expiratory volume at 1s ( ΔFEV1 ) and forced vital capacity ( ΔFVC ) .
COPD patients

Mean followup was 22.3 ( range 12 to 36 ) and 21.3 months ( range 12 to 35 ) in groups 1 and 2 , respectively .

not found

