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.

[Q]: Though this prolongation of remission was not significant in the bestatin group compared to the control group in the 15-49 yr age group , in the 50-65 yr age group it was significantly longer .
[A]: not found


[Q]: Results indicated that there was a significant decrease in both the C-STAI score ( F = 4.66 , P < 0.05 ) and the WHOQoL score ( F = 4.74 , P < 0.05 ) in the experimental group .
[A]: not found


[Q]: The patients were examined in the acute state and after treatment when possible .
[A]:
not found