insurance were exempt from the copayments, this health care reform can be regarded as a natural experiment. We used a difference …

insurance were exempt from the copayments, this health care reform can be regarded as a natural experiment. We used a difference …

insurance were exempt from the copayments, this health-care reform can be regarded as a natural experiment. We used a difference …

insurance were exempt from the copayments, this health care reform can be regarded as a natural experiment. We used a difference …

insurance were exempt from the copayments, this health care reform can be regarded as a natural experiment. We used a difference …

insurance were exempt from the copayments, this health care reform can be regarded as a natural experiment. We used a difference …

insurance were exempt from the copayments, this health care reform can be regarded as a natural experiment. We used a difference …

insurance were exempt from the copayments, this health-care reform can be regarded as a natural experiment. We used a difference … low and is paid only for the first physician visit per quarter. -- Copayments ; Ambulatory care ; Difference …

insurance were exempt from the copayments, this health care reform can be regarded as a natural experiment. We used a difference …

insurance were exempt from the copayments, this health care reform can be regarded as a natural experiment. We used a difference …