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: Serum creatine kinase activity decreased significantly in the methotrexate group .

Answer: not found


Question: Short-term phasic activity was only found in 13 out of 40 of the normal infants ( 32.5 % ) .

Answer: 40 of the normal infants


Question: During the course of therapy , a modest improvement in the symptom scores and functional classification of the flosequinan-treated patients was observed .

Answer:
not found