Donald L Campbell

Correlation between quantitative fit factors and workplace protection factors measured in actual workplace environments at a steel foundry.

Robert B Lawrence, Paul A Jensen, Ziqing Zhuang, 2003, AIHA journal : a journal for the science of occupational and environmental health and safety.

A Survey of Private Sector Respirator Use in the United States: An Overview of Findings

Girija Syamlal, Ki Moon Bang, Donald L Campbell, 2005, Journal of occupational and environmental hygiene.

Errors Associated with Three Methods of Assessing Respirator Fit

Robert B Lawrence, Ziqing Zhuang, Christopher C Coffey, 2006, Journal of occupational and environmental hygiene.

Comparison of five methods for fit-testing N95 filtering-facepiece respirators.

Robert B Lawrence, Ziqing Zhuang, Christopher C Coffey, 2002, Applied occupational and environmental hygiene.

Fitting Characteristics of Eighteen N95 Filtering-Facepiece Respirators

Robert B Lawrence, Ziqing Zhuang, Christopher C Coffey, 2004, Journal of occupational and environmental hygiene.