What is associated with painful polyneuropathy? a cross-sectional analysis of symptoms and signs in patients with painful and painless polyneuropathy by Gierthmühlen, J, Attal, N, Baskozos, G, Bennedsgaard, K, Bouhassira, D, Crombez, G, Finnerup, NB, Granovsky, Y, Jensen, TS, John, J, Kennes, LN, Laycock, H, Pascal, MMV, Rice, ASC, Shafran-Topaz, L, Themistocleous, AC, Yarnitsky, D, Bennett, DL, Baron, R