1. Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy
2. Department of Psychology, Catholic University of Sacred Heart, 20123 Milan, Italy
3. Family Studies and Research University Centre, Catholic University of Sacred Heart, 20123 Milan, Italy
4. EPIMED Research Center, Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy
5. Department of Humanities, University of Urbino Carlo Bo, 61029 Urbino, Italy
6. Department of Clinical and Experimental Medicine, University of Messina, 98122 Messina, Italy