This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/policies-and-standards/article-withdrawal).
This article has been retracted at the request of the Editor-in-Chief, Prof. Jorge G. Ruiz.
After post-publication investigation, issues related to the following were identified in the article:
Literal copying of different published works in whole or in part, without permission and acknowledgment of the original sources, which is obvious plagiarism.
B. Fougère agrees to this retraction. All the other co-authors have been contacted. After having been informed about this issue, co-authors M.O. Little, P. de Souto Barreto, M. Cesari and B. Vellas agreed to the retraction; JE. Morley has not responded to our correspondence about this retraction.
The decision to retract the article was made in accordance with the journal's commitment to upholding the highest standards of scientific integrity and accuracy in published research.