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: Treatment failures ( including relapses ) occurred at each visit in 5.8 % , 12.7 % and 10.7 % of amoxicillin recipients and 6.2 % , 11.9 % and 11.3 % of penicillin V recipients , respectively .

Answer: not found


Question: However , among OC users , nonsmokers had significantly greater heart rate and diastolic blood pressure reactivity to stress .

Answer: OC users


Question: Participants assigned to 3CM were more likely to have a mental health visit , fill an antidepressant prescription , and have adequate antidepressant refills .

Answer:
not found