Retraction Notice
This article [1] has been retracted by the authors due to significant overlap with a previous publications, including Tateno et al. [2] and Moriya et al. [3]. The authors apologise for failing to cite these articles. Claudio Terranova was not involved in the study and was introduced into the author list in error. All authors, including Claudio Terranova, have subsequently agreed that he did not qualify for authorship.
Notes
The online version of the original article can be found at 10.1186/1471-2482-12-S1-S1.
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