1. Clinical Microbiology Service, Laredo Regional Hospital, Laredo, Cantabria, Spain;
2. Clinical Microbiology Service, Basurto University Hospital, Bilbao, Biscay, Spain
3. Biocruces Bizkaia Health Research Institute, Biscay, Spain
4. Infectious Diseases Service of Basurto University Hospital, Bilbao, Biscay, Spain
5. Radiodiagnosis Service of Basurto University Hospital, Bilbao, Biscay, Spain