**6. Methods**

This literature review was based on searches on PubMed, Web of science, Springer and Wiley databases, with no time limit but giving preference to recent articles.

**Author Contributions:** All of the authors contributed equally to all aspects of the article. All authors have read and agreed to the published version of the manuscript.

**Funding:** This work was supported by a French Government gran<sup>t</sup> managed by the French National Research Agency under the program "Investissements d'Avenir" with reference ANR-11-LABX-0021

(LabEX LipSTIC). This work was also supported by the Agence Nationale de la Recherche (grant ANR-17-CE17-0023 to FL).

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** The data that support the findings of this study are available from the corresponding author upon reasonable request.

**Conflicts of Interest:** The authors declare no conflict of interest.
