“…Frozen nerve biopsy samples collected from 28 patients in treatment at the Souza Arau´jo Outpatient Service of the Oswaldo Cruz Foundation in Rio de Janeiro, RJ, Brazil, were sorted into 2 groups: (1) PNL group (n = 23) and (2) other neuropathies (ON group, n = 5). The patients had been previously diagnosed as PNL, as can be seen in 3 previous publications by our group, 3,4,9 in which neuroelectrophysiological, histopathologic, and other laboratory parameters were applied.…”