Padua,L.; Giannini,F.; Girlanda,P.; Insola,A.; Luchetti,R.; Lo,Monaco M.; Padua,R.; Uncini,A.; Tonali,P. Usefulness of segmental and comparative tests in the electrodiagnosis of carpal tunnel syndrome: the Italian multicenter study. Italian CTS Study Group. Ital.J Neurol Sci; 1999/10: 5