1. Effectiveness of low-level laser therapy in patients with knee osteoarthritis: a systematic review and meta-analysis 
Z. Huang, J. Chen, J. Ma, B. Shen, F. Pei, V.B. Kraus 
Osteoarthritis and Cartilage 
Volume 23, Issue 9, Pages (September 2015)
DOI: /j.joca
Copyright © 2015 Osteoarthritis Research Society International Terms and Conditions

2. Fig. 1 CONSORT diagram showing screening process and search results.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2015 Osteoarthritis Research Society International Terms and Conditions

3. Fig. 2
Forest plot analysis of the VAS pain score right after therapy (subgroup analysis based on whether studies conformed to WALT recommendations or not).
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2015 Osteoarthritis Research Society International Terms and Conditions

4. Fig. 3
Forest plot analysis of the WOMAC pain score right after therapy (subgroup analysis based on whether studies conformed to WALT recommendations or not).
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2015 Osteoarthritis Research Society International Terms and Conditions

5. Supplemental Fig. 1
Forest plot analysis of the VAS pain score right after therapy (subgroup analysis based on whether studies enrolled the patients with Kellgren–Lawrence grade IV KOA).
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2015 Osteoarthritis Research Society International Terms and Conditions

6. Supplemental Fig. 2
Forest plot analysis of the WOMAC pain score right after therapy (Subgroup analysis based on whether studies enrolled the patients with Kellgren–Lawrence grade IV KOA).
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2015 Osteoarthritis Research Society International Terms and Conditions

7. Supplemental Fig. 3
Forest plot analysis of the WOMAC stiffness score right after therapy.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2015 Osteoarthritis Research Society International Terms and Conditions

8. Supplemental Fig. 4
Forest plot analysis of the WOMAC function score right after therapy.
Osteoarthritis and Cartilage  , DOI: ( /j.joca )
Copyright © 2015 Osteoarthritis Research Society International Terms and Conditions