Article History
Received: 12 February 2019
Accepted: 11 June 2019
First Online: 4 July 2019
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: Research involving human participants and/or animals: For this type of study, formal consent is not required.
: Informed consent was obtained from all individual participants included in the ECPF. The study also relies on administrative data made available by public institutions for research purposes where individual-level information has been anonymized.