OBJECTIVE.: To inform future human papillomavirus (HPV) vaccination programs, we
systematically reviewed studies of HPV-related beliefs and HPV vaccine acceptability …

Background: Although abnormal screening mammograms deleteriously affect the
psychological well-being of women during the time immediately surrounding the tests, their …

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 …

Background: Risk perceptions are central to many health behavior theories. However, the
relationship between risk perceptions and behavior, muddied by instances of inappropriate …

Background: Because risk perceptions can affect protective behavior and protective
behavior can affect risk perceptions, the relations between these 2 constructs are complex …

Vaccination is one of the great achievements of the 20th century, yet persistent public-health
problems include inadequate, delayed, and unstable vaccination uptake. Psychology offers …

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 We sought to systematically review the literature on electronic nicotine delivery
systems (ENDS, also called electronic cigarettes) awareness, use, reactions and beliefs …

Since the first case of COVID-19 was identified in the USA in January, 2020, over 46 million
people in the country have tested positive for SARS-CoV-2 infection. Several COVID-19 …

A growing number of people use the Internet to obtain health information, including
information about vaccines. Websites that allow and promote interaction among users are …