Is time for sleep declining among Americans?
Basner
Mathias
M
University of Pennsylvania, Division of Sleep and Chronobiology, Philadelphia, PA 19104, USA. basner@mail.med.upenn.edu
D015982:Bias; D003430:Cross-Sectional Studies; D006306:Health Surveys; D006801:Humans; D015994:Incidence; D012892:Sleep Deprivation / Q000453:epidemiology*; D014481:United States