Authors: M W van Tulder; R Ostelo; J W Vlaeyen; S J Linton; S J Morley; W J Assendelft Journal: Spine (Phila Pa 1976) Date: 2001-02-01 Impact factor: 3.468
Authors: M E Goossens; M P Rutten-Van Mölken; A M Kole-Snijders; J W Vlaeyen; G Van Breukelen; R Leidl Journal: Health Econ Date: 1998-02 Impact factor: 3.046