The need for a systematic approach to research on vaccine effectiveness (VE) is increasing
with growing numbers of vaccines and complexity of immunization programs. The diverse …

Selection bias is a massive problem in infectious disease epidemiology that can result in
needless morbidity and mortality. This bias is both subtle and ubiquitous, occurring even in …

Noncompliance, a common problem in randomized clinical trials (RCTs), complicates the
analysis of the causal treatment effect especially in meta-analysis of RCTs. The complier …