1 Erratum to: Electron Commer Res DOI 10.1007/s10660-015-9205-4

The Acknowledgment text has been missed out in the original publication of the article. The Acknowledgment should read as given below:

Acknowledgment

This work was supported by the ICT R&D Program of MSIP/IITP [B0101-15-247, Development of open ICT healing platform using personal health data].