Authors: John L Plummer; David A Cherry; Michael J Cousins; Geoffrey K Gourlay; Margaret M Onley; Kim H A Evans Journal: Pain Date: 1991-03 Impact factor: 6.961
Authors: Joachim Chrubasik; Konrad F Falke; Martin Zindler; Benedikt Volk; Serge Blond; Jacques Meynadier Journal: Pain Date: 1986-11 Impact factor: 6.961
Authors: J Chrubasik; J Meynadier; S Blond; P Scherpereel; E Ackerman; M Weinstock; K Bonath; H Cramer; E Wünsch Journal: Lancet Date: 1984-11-24 Impact factor: 79.321