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Assessing the reliability and validity of direct observation and traffic camera streams to measure helmet and motorcycle use
- Correspondence to Professor John D Kraemer, Department of Health Systems Administration, Georgetown University, 231 St Mary's Hall, 3700 Reservoir Road, Washington, DC 20057, USA; jdk32{at}georgetown.edu
Citation
Assessing the reliability and validity of direct observation and traffic camera streams to measure helmet and motorcycle use
Publication history
- Received August 12, 2014
- Revised December 9, 2014
- Accepted January 7, 2015
- First published January 23, 2015.
Online issue publication
May 13, 2016
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