Goodman-Bacon Andrew J, Nikpay Sayeh S
From the Department of Economics, Vanderbilt University (A.J.G.-B.), and Vanderbilt University School of Medicine (S.S.N.), Nashville.
N Engl J Med. 2017 Mar 16;376(11):1005-1007. doi: 10.1056/NEJMp1615696. Epub 2017 Feb 1.