Describing a "mass shooting": the role of databases in understanding burden.

Background: The mass shooting phenomenon has gained much attention lately as this form of gun violence appears to increase in frequency. Although many organizations collect information on mass shootings (fatal and nonfatal injuries), no federal definition of this phrase exists. The purpose of this study was to highlight the different statistics that result among databases that define and track "mass shootings.

Desirability of Personalized Guns Among Current Gun Owners.

Introduction: Personalized guns are touted as a technology that could substantially reduce firearm-related deaths. However, limited research has examined the desirability of personalized guns among current gun owners or the factors influencing the likelihood of purchase if personalized guns were available.

Methods: A nationally representative online survey of U.