Usability of the Medicare health web site.
Czaja
Sara J
SJ
Sharit
Joseph
J
Nair
Sankaran N
SN
D000368:Aged; D054626:Consumer Health Information / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D020407:Internet / Q000706:statistics & numerical data; D008297:Male; D006278:Medicare; D008875:Middle Aged; D040442:Public Health Informatics; D014481:United States