1. Department of Internal Medicine, University Hospital “Virgen de la Victoria”, 29010 Málaga, Spain
2. Scientific Department, Alesco S.r.l., Via delle Lenze, 56122 Pisa, Italy
3. Scientific Department, Pharmanutra S.p.A., Via delle Lenze, 56122 Pisa, Italy
4. Department of Medicine, University of Verona, 37129 Verona, Italy
5. Perioperative Transfusion Medicine, Department of Surgical Specialties, Biochemistry and Immunology, School of Medicine, Campus de Teatinos, 29071 Málaga, Spain