EntityQ1175505· pop 7· linked from 56 articlesDavid KopaySign in to saveplayer of American footballRecent publications · Crossref5 total works indexedBasic local alignment search tool · 1990 · cited 80,005xThe PRISMA 2020 statement: an updated guideline for reporting systematic reviews · 2021 · cited 76,905xThe moderator–mediator variable distinction in social psychological research: Conceptual, strategic, and statistical considerations. · 1986 · cited 62,913xEvaluating Structural Equation Models with Unobservable Variables and Measurement Error · 1981 · cited 60,750xPreferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement · 2009 · cited 57,924xvia Crossref · CC0ConnectionsSherman OaksEntityCaliforniaEntityCategories1942 births20th-century American sportsmen21st-century American LGBTQ peopleAmerican football running backsAmerican gay sportsmenAmerican memoiristsBLP articles lacking sources from February 2014Detroit Lions playersGay memoiristsGreen Bay Packers playersLGBTQ people from IllinoisLGBTQ players of American football