Erratum to: Eur J Med Res (2016) 21:38 DOI 10.1186/s40001-016-0232-y

Following publication of the original article [1], the authors requested a correction in the presentation of their institutions as they appear on the Web of Science. Specifically, it should be emphasized that the institutions belong to Zhejiang University. The correct presentation of affiliations is given in this erratum.