Naima Sahraoui* , Borna Müller* , Djamel Guetarni , Fadéla Boulahbal , Djamel Yala , Rachid Ouzrout , Stefan Berg , Noel H Smith and Jakob Zinsstag
BMC Veterinary Research 2009, 5:4doi:10.1186/1746-6148-5-4