Internet option in a mail survey: more harm than good?
Ziegenfuss
Jeanette Y
JY
Beebe
Timothy J
TJ
Rey
Enrique
E
Schleck
Cathy
C
Locke
G Richard
GR
Talley
Nicholas J
NJ
D000328:Adult; D000367:Age Factors; D000368:Aged; D006306:Health Surveys; D006801:Humans; D020407:Internet; D008875:Middle Aged; D008910:Minnesota / Q000453:epidemiology; D011159:Population Surveillance