1 Division of General Internal Medicine, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, and the Program on Policy Evaluation and Learning, Dallas, Texas.
2 Division of General Internal Medicine, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas.
3 Institute of Health Policy and Management, College of Public Health, National Taiwan University, Taipei, Taiwan.
4 Walter Family Distinguished Chair in Internal Medicine and Chief, William T. and Gay F. Solomon Division of General Internal Medicine, Department of Internal Medicine, and MedPAC Commissioner and Director, Program on Policy Evaluation and Learning, University of Texas Southwestern Medical Center, Dallas, Texas; is from the Program on Policy Evaluation and Learning, Dallas, Texas. Electronic address: joshua.liao@utsouthwestern.edu.