Analysis of a European general wildlife health surveillance program: Chances, challenges and recommendations. oleh Elisabeth Heiderich, Saskia Keller, Mirjam Pewsner, Francesco Carlo Origgi, Samoa Zürcher-Giovannini, Stéphanie Borel, Iris Marti, Patrick Scherrer, Simone Roberto Rolando Pisano, Brian Friker, Irene Adrian-Kalchhauser, Marie-Pierre Ryser-Degiorgis