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This page is a summary of: Comparison of First, Last, and Longest-Held Jobs as Surrogates for All Jobs in Estimating Cumulative Exposure in Cross-Sectional Studies of Work-Related Asthma, Annals of Epidemiology, January 2008, Elsevier,
DOI: 10.1016/j.annepidem.2007.06.007.
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