EntityQ3375384· pop 10Robert LevinsonSign in to saveFBI and CIA agentRecent publications · Crossref5 total works indexedDevelopment of the Colle-Salvetti correlation-energy formula into a functional of the electron density · 1988 · cited 94,872xHallmarks of Cancer: The Next Generation · 2011 · cited 55,818xResearch electronic data capture (REDCap)—A metadata-driven methodology and workflow process for providing translational research informatics support · 2009 · cited 45,432xRegression Shrinkage and Selection Via the Lasso · 1996 · cited 38,852xThe PHQ-9 · 2001 · cited 38,233xvia Crossref · CC0Categories1948 births21st-century deathsAmerican people taken hostageCIA operatives in IranDate of death unknownDrug Enforcement Administration agentsFederal Bureau of Investigation agentsKidnapped American peopleMissing American peoplePeople declared dead in absentiaPeople from Flushing, Queens