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]: 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]: After three weekly doses of epoetin alfa 40,000 U , a dose of 120,000 U can be administered safely once every 3 weeks without increasing transfusion needs or sacrificing QOL .
[EX A]: not found

[EX Q]: The question of whether abstinence during the months following a planned quit attempt exacerbates or improves depressive symptoms is an important clinical issue .
[EX A]:
not found