1. Associate Professor, Research Unit of Nursing Science; Campus Bio-medico University of Rome; Rome Italy
2. Adjunct Professor, University of Rome Tor Vergata; Rome Italy
3. Professor, Research Unit of Nursing Science; Campus Bio-medico University of Rome; Rome Italy
4. Professor and Edith Clemmer Steinbright Chair of Gerontology; School of Nursing, University of Pennsylvania; Philadelphia PA USA