Objective To inform international research and policy, we conducted a meta-analysis of the
experimental literature on pictorial cigarette pack warnings. Data sources We systematically …

Objectives Cigarette pack warnings are a tobacco control strategy used globally. To
understand their impact, we systematically reviewed longitudinal observational studies …

Participant attrition poses a significant threat to the internal and external validity of panel
studies, in part because participants who successfully complete all follow-up measurements …

Objectives. To further validate and assess the reliability and validity of the Trust in Physician
Scale. Methods. Consecutive adult patients (n= 414) from 20 community-based, primary …

For decades, advocacy for tobacco control has been a priority of the American Heart
Association (AHA). In partnership with major public health organizations, the association has …

Objective. Previous studies examining opioid dose and overdose risk provide limited
granularity by milligram strength and instead rely on thresholds. We quantify dose …

BACKGROUND: Public interest in electronic nicotine delivery systems (ENDS) is
undocumented. PURPOSE: By monitoring search queries, ENDS popularity and correlates …

Importance Pictorial warnings on cigarette packs draw attention and increase quit intentions,
but their effect on smoking behavior remains uncertain. Objective To assess the effect of …

Objective: To study the relationship between peer-related physical activity (PA) social
networks and the PA of adolescent girls. Methods: Cross-sectional, convenience sample of …

Crowdsourcing is an online, distributed, problem-solving, and production model that uses
the collective intelligence of networked communities for specific purposes. Although its use …