1. Centro Dentistico Chisci, Via Ricasoli 18, 58100 Grosseto, Italy
2. Department of Ophthalmology, University of Palermo, 90133 Palermo, Italy
3. Department of Ophthalmology, Greifswald University Hospital, 17475 Greifswald, Germany
4. Department of Pathology, USL Toscana Sudest—Grosseto, Misericordia Hospital, 58100 Grosseto, Italy