220
Participants
Start Date
June 30, 2007
Primary Completion Date
June 30, 2011
Study Completion Date
June 30, 2011
Silicon ring positioned in the vagina, around the cervix
Silicon ring positioned in the vagina, around the cervix
Hopital POISSY-ST GERMAIN EN LAYE, Poissy
Assistance Publique - Hôpitaux de Paris
OTHER