Lubrano di Scorpaniello, Ennio, and Antonio Spadaro. 2013. “Unmet Needs in Outcome Measures of Psoriatic Arthritis: Focus on Axial Radiographic and Nail Involvement”.
Acta Biomedica Atenei Parmensis 84 (2): 87-93.
https://mattioli1885journals.com/index.php/actabiomedica/article/view/2733.