Epidemiological methods provide a comprehensive toolkit for understanding the distribution, determinants and dynamics of disease within populations. Fundamental to public health, these methods range ...

Outbreaks of adenovirus type 4 (Ad4) acute respiratory disease (ARD) have reemerged among US military personnel during the past decade. A prospective epidemiological investigation of 678 military ...

This is a preview. Log in through your library . Abstract The number of studies reporting beneficial effects of sunlight and vitamin D on several types of cancer with a high mortality rate is growing ...