This study involves only volunteers for anonymous online questionnaire answering, without any identifying information collection and with a total independence from any medical care. This considered, regarding the French legislation about medical research involving human person (Loi Jardé), an ethical committee approbation is not required (https://www.legifrance.gouv.fr/codes/id/LEGISCTA000032722874/2017-06-14/).
The INSTRUMODA study was registered on https://clinicaltrials.gov on June 25, 2020 (NCT 04446780). The INSTRUMODA project have been approved by an ethical committee: Comité de Protection des Personnes Nord Ouest IV (ID RCB: 2020-A01974-35).
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