Influence of depression symptoms on serum tumor necrosis factor-α of patients with chronic low back pain.
Wang
Haili
H
Department of Orthopaedic Surgery, University of Heidelberg, Schlierbacher Landstrasse 200a, 69118 Heidelberg, Germany. haili.wang@med.uni-heidelberg.de
Ahrens
Carsten
C
Rief
Winfried
W
Gantz
Simone
S
Schiltenwolf
Marcus
M
Richter
Wiltrud
W