ACKNOWLEDGMENTS
The authors thank Dr Philippe Bornet for medical assistance in this study. DNA extractions were realized by F. David and PCR experiments by C.T Lu. The authors have no financial or proprietary interest in any of the products, methods, or materials mentioned in this study.
Declaration of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.
Financial support: We thank the Novartis-Pharma firm for continuous support.