Correction to author listing and affiliations.
© 2007 Optical Society of America
The author listing and affiliations for the previous article  should read:
References and links
1. W. Huang and F. Cerrina, “The con-focal method on verifying focal plane of MAS machine,” Opt. Express 15,872–877 (2007). http://www.opticsinfobase.org/abstract.cfm?URI=oe-15-3-872 [CrossRef] [PubMed]