TY - JOUR AU - Matthias, M S; Parpart, A L; Nyland, K A TI - The patient-provider rela­tionship in chronic pain care: Providers’ perspectives JO - Pain Med VL - 11 PY - 2010 DO - 10.1111/j.1526-4637.2010.00980.x SP - 1688 EP - 1697 N1 - et al. ER -