Paul, Pavitra
Nguemdjo, Ulrich
Ngami, Armel
Kovtun, Natalia
Ventelou, Bruno
Article History
Received: 8 June 2021
Accepted: 20 July 2022
First Online: 26 August 2022
Competing interests
: The authors declare no competing interests.
: Not applicable. This article does not contain any studies with human participants performed by any of the authors.
: Not applicable. This article does not contain any studies with human participants performed by any of the authors. This study uses administrative data with no individual identification identifiable by the user.