1 Department of Health Administration and Policy, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA. Electronic address: junying-zhao@ouhsc.edu.
2 Department of Economics, University of Oklahoma, Norman, Oklahoma, USA. Electronic address: mjkim@ou.edu.
3 Department of Health Administration and Policy, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA. Electronic address: Gabrielle-Westbrook@ouhsc.edu.
4 Department of Health Administration and Policy, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA. Electronic address: dale-bratzler@ouhsc.edu.