title: Author response: early, but not late chronotypes, are up during their biological night when working the night shift.
authors.affiliation: Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.
authors.forename: Parveen
authors.initials: P
authors.lastname: Bhatti
authors.affiliation: Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.
authors.forename: Dana K
authors.initials: DK
authors.lastname: Mirick
authors.affiliation: Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.
authors.forename: Scott
authors.initials: S
authors.lastname: Davis
mesh_terms: D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D008297:Male; D008550:Melatonin / Q000031:analogs & derivatives*; D009369:Neoplasms / Q000652:urine*; D009784:Occupational Diseases / Q000652:urine*; D012890:Sleep; D014851:Wakefulness; D014940:Work Schedule Tolerance / Q000502:physiology*
chemical_list: D008550:Melatonin