Text and Data Mining valid from 2020-01-16
Received: 26 September 2019
Accepted: 10 January 2020
First Online: 16 January 2020
Ethics approval and consent to participate
: Since this study was an analysis of secondary data, ethical approval was not applicable. Permission to access and use the datasets was granted by measure DHS.
: Not Applicable.
: The authors declare that they have no competing interests.