1. Preface Sleep Medicine Clinics
Robert Stickgold, PhD 
Sleep Medicine Clinics 
Volume 6, Issue 1, Pages xiii-xv (March 2011)
DOI: /j.jsmc
Copyright © 2011 Elsevier Inc. Terms and Conditions

2. Fig. 1
Publication rates. Number of articles cited in PubMed with MeSH Major Topics of sleep and either learning or memory, by year.
Sleep Medicine Clinics 2011 6, xiii-xvDOI: ( /j.jsmc )
Copyright © 2011 Elsevier Inc. Terms and Conditions

3. Robert Stickgold, PhD, Guest Editor
Sleep Medicine Clinics 2011 6, xiii-xvDOI: ( /j.jsmc )
Copyright © 2011 Elsevier Inc. Terms and Conditions