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.

Input: Consider Input: We randomly assigned 28 patients with refractory monosymptomatic nocturnal enuresis to 2 equal groups .

Output: 28 patients with refractory monosymptomatic nocturnal enuresis


Input: Consider Input: This study aimed to investigate the course of depression for patients with recently diagnosed rheumatoid arthritis ( RA ) and to investigate predictors of depression .

Output: patients with recently diagnosed rheumatoid arthritis ( RA


Input: Consider Input: Blood samples were collected after these periods , when fish were immobile and reached stage 4 anesthesia .


Output: not found