1 Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA; Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA. Electronic address: dclarkson-townsend@bwh.harvard.edu.
2 Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
3 Woodruff Health Sciences Center Library, Emory University, Atlanta, GA, USA.
4 Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
5 Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA; Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA.