From the clinical point of view, most examined patients presented with a classic sensorimotor variant (70.0%, 51/73), whereas Miller Fisher syndrome, GBS/MFS overlap variants (including polyneuritis cranialis), bilateral facial palsy with paresthesia, pure motor, and paraparetic were described in seven, two, five, four, and one patients, respectively. In three cases, no clinical variant could be established using the reported details (Table 1). In the examined population, 81.8% subjects fulfilled electrophysiological criteria for AIDP (45/55), 12.7% (7/55) for AMSAN, and 5.4% (3/55) for AMAN subtypes. Finally, a specific electrophysiological subtype was not attributable in 18 patients due to the lack of detailed information. The diagnosis of GBS was established based on clinical, CSF, and electrophysiological findings in 44/73 (60.3%) patients, clinical, and electrophysiological data in 18/73 (24.7%) cases, clinical, and CSF data in 8/73 (11.0%), and only clinical findings in 3/73 (4.1%) patients. Indeed, the highest level of diagnostic certainty (level one) was confirmed in 44/73 cases (60.3%). Level two and three were obtained in 24/73 cases (32.9%) and 5/73 (6.8%), respectively (Table 1).