On 2017 Dec 19, Stuart RAY commented:

Not noted on this PubMed entry (yet, perhaps), this paper has been retracted. Of particular note, the retraction statement makes an excellent case for the authors' dedication to data sharing - it was reanalysis of the raw data by another group of scientists that revealed an unexpected finding. Without data sharing it would have been very difficult to discover the problem of mixed species in the sample. Kudos to the authors, and data sharing for reliable science!

On 2017 Dec 19, Stuart RAY commented:

Not noted on this PubMed entry (yet, perhaps), this paper has been retracted. Of particular note, the retraction statement makes an excellent case for the authors' dedication to data sharing - it was reanalysis of the raw data by another group of scientists that revealed an unexpected finding. Without data sharing it would have been very difficult to discover the problem of mixed species in the sample. Kudos to the authors, and data sharing for reliable science!