Harmonizing neuropathic pain research: outcomes of the London consensus meeting on peripheral tissue studies od Villa, S, Aasvang, EK, Attal, N, Baron, R, Bourinet, E, Calvo, M, Finnerup, NB, Galosi, E, Hockley, JRF, Karlsson, P, Kemp, H, Körner, J, Kutafina, E, Lampert, A, Mürk, M, Nochi, Z, Price, TJ, Rice, ASC, Sommer, C, Taba, P, Themistocleous, AC, Treede, R-D, Truini, A, Üçeyler, N, Bennett, DL, Schmid, AB, Denk, F