Funding for this research was provided by:
Association générale des institutions de retraite complémentaire des cadres (1)
Received: 21 December 2018
Accepted: 16 May 2019
First Online: 22 May 2019
Ethics approval and consent to participate
: Regulatory monitoring was performed in accordance with the French law requiring the approval of the French ethics committee (Comité d’éthique, Aix Marseille University, February 4th 2015, Number 2014 − 02 − 04 − 04). All records and subject’ identities remained confidential in accordance with French regulations: the French National Committee of Informatics and Liberties (Commission nationale de l’informatique et des libertés, 20/03/2014, reference number DR-2014 − 097). Consent was obtained from each participant.
: Not applicable.
: The authors declare that they have no competing interests.
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