Matched case-control designs are commonly used in epidemiologic studies for increased efficiency. These designs have recently been introduced to the setting of modern imaging and genomic studies, ...

Convenience store clerks have been shown to be at high risk for assault and homicide, mostly owing to robbery or robbery attempts. Although the literature consistently indicates that at least some ...

Background: Between September and December 2003, an outbreak of pertussis occurred in Cass County, MO, mostly among adolescent school children. Methods: We conducted a 1:2 matched case-control study ...

Complete vaccination with the four-component, protein-based meningococcal serogroup B vaccine (4CMenB; Bexsero) was found to be effective in the prevention of invasive serogroup B and non-serogroup B ...