1. Department of Pathology; Radboud University Nijmegen Medical Centre; Nijmegen The Netherlands
2. Department of Pathology; Jeroen Bosch Hospital; ‘s-Hertogenbosch The Netherlands
3. Department of Obstetrics and Gynaecology; Radboud University Medical Center; Nijmegen The Netherlands
4. Department of Medical Microbiology; Radboud University Medical Center; Nijmegen The Netherlands