Risk Factors for Primary Clostridium difficile Infection; Results From the Observational Study of Risk Factors for Clostridium difficile Infection in Hospitalized Patients With Inf... oleh Kerrie Davies, Jody Lawrence, Claire Berry, Georgina Davis, Holly Yu, Bing Cai, Elisa Gonzalez, Ida Prantner, Andrea Kurcz, Ioana Macovei, Hanna Pituch, Elena Nováková, Otakar Nyč, Barbara Gärtner, Fabian K. Berger, Monica Oleastro, Oliver A. Cornely, Maria J. G. T. Vehreschild, Louise Pedneault, Mark Wilcox