This paper is in the following e-collection/theme issue:

Internet-based Survey & Research Methodology 


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Tweetations for "Validation of an Informant-Reported Web-Based Data Collection to Assess Dementia Symptoms"

Kenneth Rockwood, An Zeng, Chris Leibman, Lisa Mucha, Arnold Mitnitski
J Med Internet Res 2012 (Mar 12); 14(2):e42 

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