This article [J. Biomed. Opt. 17, 026005 (2012)] was originally published online on 5 March 2012 with errors in the author affiliations. The second affiliation was removed, and the street address for both the Catholic University Leuven and University Hospitals Leuven was changed from “Minderbroederstraat 19” to “Herestraat 49.” The corrected affiliation appears above.
The article was corrected online on 26 March 2012.