Sleep duration and television viewing.
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D012737:Sex Factors; D012890:Sleep; D013690:Television; D013997:Time Factors; D014481:United States