Expression of Concern: BMC Res Notes (2018) 11:413 https://doi.org/10.1186/s13104-018-3529-9

The Editor wishes to issue an expression of concern for this article [1].

After publication of this article it was brought to the Editor's attention that:

  • Contrary to the statement included in the article, ethics approval for the study was provided by Mekelle University, not Aksum University

  • Contrary to the statement included in the article, the study was conducted between February 2016 and November 2016

  • Contrary to the statement included in the article, the data used and analyzed during the current study are not available

  • The authors have not been able to provide redacted consent forms to confirm that informed consent was obtained from the study participants.

Neither of the authors provided a statement on whether they agree to this Expression of Concern or otherwise.