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.

Sixty healthy women , half of whom had been using OCs for at least the previous 6 months , participated in the study .
not found

Treatment with lime did not cause any significant side-effect .
not found

Ramipril prevents or delays the progression of albuminuria .

not found