Correction: The role of cumulative physical work load in symptomatic knee osteoarthritis - a case-control study in Germany (Seidler et al. 2008).
Institute and Policlinic for Occupational and Social Medicine, Dresden, Germany. andreas.seidler@mailbox.tu-dresden.de.
Andreas
A
Seidler
Ulrich
U
Bolm-Audorff
Nasreddin
N
Abolmaali
Gine
G
Elsner