Authors: Sandra E Ward; Nancy Goldberg; Vickie Miller-McCauley; Carol Mueller; Ann Nolan; Darlene Pawlik-Plank; Alice Robbins; Doris Stormoen; David E Weissman Journal: Pain Date: 1993-03 Impact factor: 6.961
Authors: C S Cleeland; R Gonin; A K Hatfield; J H Edmonson; R H Blum; J A Stewart; K J Pandya Journal: N Engl J Med Date: 1994-03-03 Impact factor: 91.245