The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Discussion In this multinational European prospective cohort study, we ...

The Pan American Health Organization (PAHO) has launched the Birth Defects Repository in the Americas, an interactive ...

The study designs used include all the standard epidemiological designs, and the definitions of child-care attendance and risk factors varied widely. The result is a collection of different measures ...

Epidemiological studies of heart failure vary in study design and clinical definition, complicating efforts to produce comparable estimates of disease burden. For example, definitions of heart failure ...