[1] Sci Inst Hosp Casa Sollievo Sofferenza, Unit Interven Ultrasound Internal Med, Viale Cappuccini 1, San Giovanni Rotondo, FG, Italy
[2] Univ Catania, Sch Med, Internal Med Div, Dept Clin & Expt Med, Catania, Italy
[3] Univ Foggia, Dept Med Sci, Rheumatol Unit, Foggia, FG, Italy
[4] Sci Inst Hosp Casa Sollievo Sofferenza, Histol & Pathol Unit, Viale Cappuccini 1, San Giovanni Rotondo, FG, Italy
[5] Univ Catania, Sch Med, Human Anat & Histol Sect, Dept Biomed & Biotechnol Sci, Catania, Italy
[6] Univ Foggia, Dept Radiol, Viale Luigi Pinto 1, I-71100 Foggia, Italy
[7] Sci Inst Hosp Casa Sollievo Sofferenza, Dept Radiol, Viale Cappuccini 1, San Giovanni Rotondo, FG, Italy