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2. Effect of measurement error on epidemiological studies of environmental and occupational exposures;Armstrong,1998
3. RF-421 Keyword searches of O*NET job tasks for exposure assessment, United States of America [abstract];Beard;Occup Environ Med.,2021
4. Suicide and pesticide use among pesticide applicators and their spouses in the Agricultural Health Study;Beard,2011
5. Crosswalks to convert US Census Bureau industry and occupation codes, 1980-2018;Beard,2022