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.

After treatment 11 group 1 patients ( 78.6 % ) had a partial or full response to posterior tibial nerve stimulation but only 2 ( 14.3 % ) in group 2 had a partial response ( p = 0.002 ) .
not found

Confidence intervals around these ratios suggested wide variability of cost effectiveness of aquatic exercise .
not found

Ascaris and growth rates : a randomized trial of treatment .

not found