1. The factors associated with pain severity in patients with knee osteoarthritis vary according to the radiographic disease severity: a cross-sectional study 
Y. Shimura, H. Kurosawa, Y. Sugawara, M. Tsuchiya, M. Sawa, H. Kaneko, I. Futami, L. Liu, R. Sadatsuki, S. Hada, Y. Iwase, K. Kaneko, M. Ishijima 
Osteoarthritis and Cartilage 
Volume 21, Issue 9, Pages (September 2013)
DOI: /j.joca
Copyright © 2013 Osteoarthritis Research Society International Terms and Conditions

2. Fig. 1 A flow chart of the present study.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2013 Osteoarthritis Research Society International Terms and Conditions