1 Center for Clinical Management Research, Department of Veterans Affairs, VA Ann Arbor Healthcare System, Ann Arbor, Michigan; Division of Gastroenterology, University of Michigan Health System, Institute for Healthcare Policy and Innovation, Ann Arbor, Michigan. Electronic address: meganada@med.umich.edu.
2 Center for Clinical Management Research, Department of Veterans Affairs, VA Ann Arbor Healthcare System, Ann Arbor, Michigan.
3 Center for Clinical Management Research, Department of Veterans Affairs, VA Ann Arbor Healthcare System, Ann Arbor, Michigan; Division of Gastroenterology, University of Michigan Health System, Institute for Healthcare Policy and Innovation, Ann Arbor, Michigan.