1. Osteoarthritis year 2012 in review: biology
P.M. van der Kraan 
Osteoarthritis and Cartilage 
Volume 20, Issue 12, Pages (December 2012)
DOI: /j.joca
Copyright © 2012 Osteoarthritis Research Society International Terms and Conditions

2. Fig. 1
Local and systemic interactions that are involved in OA pathophysiology and symptoms.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2012 Osteoarthritis Research Society International Terms and Conditions