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: After the 6-month training period , the SST Group made fewer errors in labeling anger on adult faces , whereas error rates in the LA Group remained stable .

A: not found
****
Q: Gastrointestinal symptoms have been reported in association with myoelectrical dysrhythmia , where different types of gastric electrical activity have been described .

A: not found
****
Q: Subjects were randomly divided in two groups : supplementation ( n 11 ) with 100 mg dl-alpha-tocopheryl acetate , 200 mg ascorbic acid , and 2 mg beta-carotene , and placebo ( n 9 ) .

A:
not found
****