Producers of infant formula employ comprehensive food safety systems, including product testing to ensure those systems are working. A new study from the University of Illinois Urbana-Champaign finds ...

Comparing the power of three different sampling patterns with the low-prevalence, high-level profile. The probability of detection is shown at 2.5th–97.5th percentile. The line with dots shows the ...

It is shown that variance estimates for regression coefficients in exposure-stratified case-cohort studies (Borgan et al 9 Lifetime Data Anal., 6,2000,39-58) can easily be obtained from influence ...