1. Model deviance associated with including, in a polychotomous regression model of profusion categories, each GEI formed from the combination of powers of time since exposure (a) and concentration (b).
Model deviance associated with including, in a polychotomous regression model of profusion categories, each GEI formed from the combination of powers of time since exposure (a) and concentration (b). Age groups 50–74, post-1964 exposure.
D Buchanan et al. Occup Environ Med 2003;60:
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