Risk factors for noma disease: a 6-year, prospective, matched case-control study in Niger oleh Denise Baratti-Mayer, MD, Angèle Gayet-Ageron, MD, Stéphane Hugonnet, MD, Patrice François, PhD, Brigitte Pittet-Cuenod, MD, Antoine Huyghe, PhD, Jacques-Etienne Bornand, MD, Prof Alain Gervaix, MD, Denys Montandon, MD, Jacques Schrenzel, MD, Prof Andrea Mombelli, DMD, Prof Didier Pittet, MD