Title of article :
The importance of confounding in observational before-and-after studies of road safety measures
Author/Authors :
Rune Elvik، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2002
Pages :
5
From page :
631
To page :
635
Keywords :
Before-and-after study , Road safety measure , validity , confounding
Journal title :
Accident Analysis and Prevention
Serial Year :
2002
Journal title :
Accident Analysis and Prevention
Record number :
181973
Link To Document :
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