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Article History

Received: 2 August 2021

Accepted: 12 September 2021

First Online: 28 September 2021

Declarations

:

: The authors declare no conflicts of interest.

: The current study was approved by the local ethics committee and it was, therefore, performed in accordance with the ethical standards outlined in the 1964 Declaration of Helsinki. All of the patients provided their informed consent prior to their inclusion in the study.

: All of the patients provided their oral consent and received a document with information pertaining to the study. All of the data were anonymized.

: The institutional review board approved the protocol. According to French legislation regarding retrospective studies of anonymized data (articles L.1121-1 paragraph 1 and R1121-2, Public Health Code), Nantes University Hospital confirms that approval from the ethics committee was not needed due to the non-interventional nature of the study, and no review by an ethics committee was necessary at the time of the beginning of the study. The requisite processes were undertaken with the “Direction de la Recherche Clinique” (DRC) of the University Hospital of Nantes, France, and the “Commission Nationale de l’Informatique et des Libertés” (CNIL). The database was anonymized, and all of the patients provided their verbal consent and received a document with information pertaining to the study.