1. Volume 14, Issue 12, Pages 1375-1380 (December 2013)
Relation of the International Restless Legs Syndrome Study Group rating scale with the Clinical Global Impression severity scale, the restless legs syndrome 6-item questionnaire, and the restless legs syndrome-quality of life questionnaire 
Richard Allen, Wolfgang Oertel, Arthur Walters, Heike Benes, Erwin Schollmayer, Frank Grieger, Kimberly Moran, Ralf Kohnen 
Sleep Medicine 
Volume 14, Issue 12, Pages (December 2013)
DOI: /j.sleep
Copyright © 2013 Elsevier B.V. Terms and Conditions

2. Fig. 1
The International Restless Legs Syndrome Study Group rating scale (IRLS) vs the Clinical Global Impression item 1 (CGI-1). Mean and median CGI-1 scores by IRLS category.
Sleep Medicine  , DOI: ( /j.sleep )
Copyright © 2013 Elsevier B.V. Terms and Conditions

3. Fig. 2
The International Restless Legs Syndrome Study Group rating scale (IRLS) vs the restless legs syndrome 6-item questionnaire (RLS-6). Mean and median RLS-6 item score by IRLS category.
Sleep Medicine  , DOI: ( /j.sleep )
Copyright © 2013 Elsevier B.V. Terms and Conditions

4. Fig. 3
The International Restless Legs Syndrome Study Group rating scale (IRLS) vs the restless legs syndrome-quality of life questionnaire (RLS-QoL). Mean and median RLS-QoL score by IRLS category.
Sleep Medicine  , DOI: ( /j.sleep )
Copyright © 2013 Elsevier B.V. Terms and Conditions