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.

Example Input: However OC use among nonsmoking women is associated with greater cardiovascular reactivity to stress .
Example Output: nonsmoking women

Example Input: The prophylactic effect of itraconazole capsules and fluconazole capsules for systemic fungal infections in patients with acute myeloid leukemia and myelodysplastic syndromes : a Japanese multicenter randomized , controlled study .
Example Output: patients with acute myeloid leukemia and myelodysplastic syndromes

Example Input: Patients did not practise the exhalation manoeuvre prior to testing .
Example Output:
not found