RT Journal Article SR Electronic T1 A fitful night's sleep JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 233 OP 236 DO 10.1136/jnnp.2010.217810 VO 10 IS 4 A1 Claudia B Catarino A1 Geraldine Ng A1 Matthew C Walker A1 Josemir W Sander YR 2010 UL http://pn.bmj.com/content/10/4/233.abstract AB