Katzka David A, Falck-Ytter Yngve
Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota.
Division of Gastroenterology and Hepatology, VA Northeast Ohio Healthcare System, Case Western Reserve University School of Medicine, Cleveland, Ohio.
Gastroenterology. 2020 Sep;159(3):813-815. doi: 10.1053/j.gastro.2020.05.070. Epub 2020 May 31.