Retraction Retraction dated 2016-04-06

Article History

Received: 10 November 2015

Accepted: 21 March 2016

First Online: 6 April 2016

Change Date: 1 September 2022

Change Type: Clarification

Change Details: Retraction Note: The Publisher has retracted this article. Concerns were raised about the statistical analysis of the results presented in Tables 2 and 3; the authors did not provide a response when asked about these concerns and stated that the raw data were no longer available. Assessment of the concerns by an independent expert concluded that there are inconsistencies in data analysis. The authors' institution was contacted with a request to investigate but did not respond. None of the authors have responded to correspondence from the Publisher about this retraction.

Compliance with ethical standards

: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

: This study was not funded.

: The authors declare that they have no conflict of interest.

: Informed consent was obtained from all individual participants included in the study.

: None.