Koomen, L. E. M.
Burger, R.
van Doorslaer, E. K. A.
Article History
Received: 11 June 2018
Accepted: 25 February 2019
First Online: 3 April 2019
Ethics approval and consent to participate
: Not applicable. Health District Barometer data is open accessible at the website of Health Systems Trust, no approval was needed to retrieve this data.
: Not applicable.
: The authors declare that they have no competing interests.
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