@article {692097,
	title = {Primary care quality and cost for privately insured patients in and out of US Health Systems: Evidence from four states},
	journal = {Health Services Research},
	volume = {55},
	number = {S3},
	year = {2020},
	pages = {1098-1106},
	url = {https://doi.org/10.1111/1475-6773.13590},
	author = {Ruohua Annetta Zhou and Nancy D. Beaulieu and David Cutler}
}
