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Erratum from the authors

Posted by mmatsumura on 06 Dec 2016 at 00:44 GMT

We would like to present additional information. In the Acknowledgements section, two contributors (*Hideaki Mitsui and *Takehisa Suzuki) have been added.

Acknowledgements
We especially thank Kentaro Sakamaki (Department of Biostatistics, Yokohama City University) for statistical analysis assistance and thank *Hideaki Mitsui and *Takehisa Suzuki (Department of Pathology, Yokohama City University, School of Medicine) and Emi Honda and Misa Otara (Division of Pathology, Kanagawa Prefectural Cardiovascular and Respiratory Center Hospital) for their technical assistance.

No competing interests declared.