Perception of sleepiness before falling asleep
Swedish Road and Transport Research Institute, VTI, Olaus Magnus väg 35, SE-581 95 Linköping, Sweden. Tel.: +46 13 20 40 00; fax: +46 13 14 14 36.
Stress Research Institute, Stockholm University, 10691 Stockholm, Sweden
Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
Received 24 May 2010; accepted 4 June 2010.
PII: S1389-9457(10)00243-1
doi:10.1016/j.sleep.2010.06.001
© 2010 Elsevier B.V. All rights reserved.
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