Erratum: “Changing-Look Quasar Candidates: First Results from Follow-up Spectroscopy of Highly Optically Variable Quasars” (2019, ApJ, 874, 8) oleh Chelsea L. MacLeod, Paul J. Green, Scott F. Anderson, Alastair Bruce, Michael Eracleous, Matthew Graham, David Homan, Andy Lawrence, Amy LeBleu, Nicolas P. Ross, John J. Ruan, Jessie Runnoe, Daniel Stern, William Burgett, Kenneth C. Chambers, Nick Kaiser, Eugene Magnier, Nigel Metcalfe