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: The Hb increment is somewhat greater with continued weekly epoetin alfa .

Answer: not found


Question: A comparison of different antipyretics in children with malaria showed a small effect of naproxen , but not of metamizol , on the reduction of fever peaks .

Answer: children with malaria


Question: Serum and urine biochemical parameters related to calcium status and bone metabolism remained unaltered .

Answer:
not found