1. Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
2. Anatomy and Histology, Department of Biomedical Sciences and Biotechnologies, University of Catania, Catania, Italy
3. Clinical Laboratories “Girlando and Paravizzini”, Catania, Italy
4. Center for Life Course Health Research, University of Oulu, Oulu, Finland