Updates are available Correction dated 2018-07-02

Article History

Received: 15 February 2018

Accepted: 21 May 2018

First Online: 8 June 2018

Change Date: 2 July 2018

Change Type: Correction

Change Details: Following the publication of this article [1], the authors noticed that Figs. 1, 2 and 3 were in the incorrect order and thus had incorrect captions. The images that were incorrectly published as Figs. 1, 2 and 3 should have been published as Figs. 2, 3 and 1 respectively.

Authors’ information

: Rick-Léonid Ngoua-Meye-Misso is a PhD student in Biochemistry-Pharmacology-Oncology at Doctoral School of Fundamental and Applied Sciences, University of Science and Technology of Masuku, Franceville, Gabon. Jean De La Croix NDONG as Research Professor at Ear, Nose and Throat Laboratory, Department of Otolaryngology-Head and Neck Surgery, Emory School of Medicine, Atlanta, USA. Sima-Obiang Cedric, Ondo Joseph-Privat and Ndong-Atome Guy-Roger work as a Research Professor in the Department of Chemistry-Biochemistry, University of Science and Technology Masuku, Franceville, Gabon. Ovono-Abessolo Felix is a Doctor, Associate Professor in Department of Chemistry-Biochemistry, University of Health Sciences, Libreville, Gabon. Finally, Obame-Engonga Louis-Clément is a Professor in Department of Chemistry-Biochemistry, University of Science and Technology Masuku, Franceville, Gabon.

: The study protocol was performed according to the Helsinki declaration and All volunteers have completed informed consent. The study protocol was approved by the Ethics Committee of Gabon (N° 009 March 2013).

: The authors declare that there are no competing interests.