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.

[EX Q]: Thus , this study investigates shared and disorder-specific brain dysfunctions in these 2 disorders during reward reversal , and the acute effects of an SSRI on these .
[EX A]: not found

[EX Q]: This study examined whether 24 months of weight training exercises enhanced the effectiveness of risedronate , calcium , and vitamin D in maintaining or improving bone mineral density ( BMD ) in 223 postmenopausal breast cancer survivors .
[EX A]: 223 postmenopausal breast cancer survivors

[EX Q]: Only deoxypyridinoline values were significantly lower after consumption of the BD ( 13.0 +/- 1.1 compared to 18.3 +/- 2.1 nM/Mm Cr in the WD ) , possibly indicative of less efficient bone turnover during this period .
[EX A]:
not found