Erratum to: Int J CARS (2010) 5:69–76 DOI 10.1007/s11548-009-0382-2

Unfortunately, two author names were omitted in the original version of the article. The missing authors and their affiliations are given below:

C. G. Sheets

Newport Coast Oral Facial Institute, Newport Beach, CA, USA

J. C. Earthman

Chemical Engineering and Materials Science Department, University of California, Irvine, Irvine, CA, USA