title: Sleep-wake recording of forty day duration using subcutaneous electrodes.
authors.affiliation: Department of Clinical Neurophysiology, University Hospital Leiden, The Netherlands.
authors.forename: H A
authors.initials: HA
authors.lastname: Kamphuisen
authors.forename: H
authors.initials: H
authors.lastname: van Dulken
authors.forename: A J
authors.initials: AJ
authors.lastname: Janssen
authors.forename: W W
authors.initials: WW
authors.lastname: Huyser
authors.forename: B
authors.initials: B
authors.lastname: van Sweden
authors.forename: B
authors.initials: B
authors.lastname: Kemp
authors.forename: C G
authors.initials: CG
authors.lastname: Kramer
mesh_terms: D001110:Arctic Regions; D001921:Brain / Q000502:physiology*; D004567:Electrodes, Implanted; D004569:Electroencephalography / Q000295:instrumentation* / Q000379:methods; D005101:Expeditions; D006801:Humans; D008297:Male; D008991:Monitoring, Physiologic / Q000295:instrumentation* / Q000379:methods; D012815:Signal Processing, Computer-Assisted; D012890:Sleep / Q000502:physiology*; D012894:Sleep Stages / Q000502:physiology; D013637:Tape Recording; D014851:Wakefulness / Q000502:physiology*