Gynecology and Obstetric Department;
University Hospital of Brazzaville;
Brazzaville;
Congo;
Faculty of Health and Sciences;
Marien Ngouabi University of Brazzaville;
Brazzaville;
Congo;
Gynecology and Obstetric Department;
Hospital of Loandjili;
Pointe Noire;
Congo;
Vaginal; Touch; Vertex; Presentation; Posterior; Variety; Brazzaville;