Authors: Paula A Braveman; Catherine Cubbin; Susan Egerter; Sekai Chideya; Kristen S Marchi; Marilyn Metzler; Samuel Posner Journal: JAMA Date: 2005-12-14 Impact factor: 56.272
Authors: A C Papageorgiou; G J Macfarlane; E Thomas; P R Croft; M I Jayson; A J Silman Journal: Spine (Phila Pa 1976) Date: 1997-05-15 Impact factor: 3.468