Background Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and
the resulting coronavirus disease 2019 (Covid-19) have afflicted tens of millions of people in …

Background BNT162b2 is a lipid nanoparticle–formulated, nucleoside-modified RNA vaccine
encoding a prefusion-stabilized, membrane-anchored severe acute respiratory syndrome …

Background Until very recently, vaccines against severe acute respiratory syndrome coronavirus
2 (SARS-CoV-2) had not been authorized for emergency use in persons younger than …

Ferroptosis is a non-apoptotic form of cell death induced by small molecules in specific tumour
types, and in engineered cells overexpressing oncogenic RAS. Yet, its relevance in non-…

Background Among female athletes it has not been established whether a neuromuscular
and proprioceptive sports-specific training program will consistently reduce the incidence of …

OBJECTIVE: To describe barriers to participation of African Americans in research. DESIGN:
Focus group interviews conducted in 1997. PATIENTS: Thirty-three African-American adults …

Background Investigators have voiced concerns that distrust of research and the medical
community impedes successful recruitment of African Americans into clinical research. …

The global extent and distribution of forest trees is central to our understanding of the terrestrial
biosphere. We provide the first spatially continuous map of forest tree density at a global …

We investigated the physiological function of three Arabidopsis thaliana homologs of the
gibberellin (GA) receptor GIBBERELLIN-INSENSITIVE DWARF1 (GID1) by determining the …

The Tuskegee study of untreated syphilis in the Negro male is the longest nontherapeutic
experiment on human beings in medical history. The strategies used to recruit and retain …