1. Radboud Expertise Center for Q Fever, and
2. Department of Internal Medicine, Division of Infectious Diseases, Radboud University Medical Center, Nijmegen;
3. Department of Internal Medicine, Medical Spectrum Twente, Enschede;
4. Expert Center for Chronic Fatigue and
5. Department for Health Evidence, Radboud University Medical Center, Nijmegen;
6. Department of Internal Medicine, Bernhoven Hospital, Uden;
7. Department of Internal Medicine, Medical Center Leeuwarden;
8. Q-uestion, Foundation for Patients With Q Fever, Eindhoven;
9. Department of Internal Medicine and
10. Department of Medical Microbiology and Infectious Diseases, Canisius Wilhelmina Hospital, Nijmegen; and
11. Department of Medical Psychology, Academic Medical Center, University of Amsterdam, The Netherlands