Provincial Hospital of Lubumbashi Lubumbashi Congo;
Official University of Lubumbashi Lubumbashi Congo;
Provincial Hospital of Lubumbashi Lubumbashi Congo;
University of Lubumbashi Lubumbashi Congo;
University of Lubumbashi Lubumbashi Congo;
Official University of Lubumbashi Lubumbashi Congo;
University of Liège Liège Belgium;
University of Kinshasa Kinshasa Congo;
Alassane Ouattara University Abidjan Cote d’Ivoire;
University of Lubumbashi Lubumbashi Congo;
Nefopam; Celecoxib; Headache; Rachianesthesia; Obstetrics;