1. Department of Hospital at Home; Marqués de Valdecilla University Hospital; Santander Spain
2. Department of Preventive Medicine and Public Health; Marqués de Valdecilla University Hospital; Santander Spain
3. Blood and Tissue Bank of Cantabria; Santa Cruz Hospital; Liencres Spain
4. Department of Hemotherapy and Hemostasis; University Clinic Hospital, IDIBAPS, University of Barcelona; Barcelona Spain
5. Blood Transfusion Department; Marqués de Valdecilla University Hospital, IDIVAL; Santander Spain