This article was corrected on January 28, 2021, to fix an error in a coauthor’s affiliation (jamaoncol.2020.8307). This article was also corrected on April 9, 2020, to fix an error in a coauthor’s affiliation (10.1001/jamaoncol.2020.0741) and on March 12, 2020, to fix errors in coauthors’ names and an affiliation, Table data, Figure data, and the Supplement (10.1001/jamaoncol.2020.0224). Importance Cancer and o...