The seven articles listed below were published in Volume 18 of the Journal of Biomedical Optics (JBO) with incorrect citation identifiers (CIDs).

The typical structure of the six-digit CID for JBO uses the middle two digits to indicate the section category of a paper. Due to an oversight these six papers were erroneously published under the Editorial section category (01) or JBO Letter, rather than their appropriate topical categories, resulting in an incorrect CID.

The CIDs for the first six articles were corrected online. The updated CIDs are shown below and should be used for citations.

[1.] , “Two-dimensional and surface backscattering Mueller matrices of anisotropic sphere-cylinder scattering media: a quantitative study of influence from fibrous scatterers,” J. Biomed. Opt. 18(4), 046002 (2013); doi: He et al.

[2.] , “Rapid quantification of pixel-wise fiber orientation data in micrographs,” J. Biomed. Opt. 18(4), 046003 (2013); doi: Quinn and Georgakoudi

[3.] , “Label-free in vivo imaging of human leukocytes using two-photon excited endogenous fluorescence,” J. Biomed. Opt. 18(4), 040504 (2013); doi: Zeng et al.

[4.] , “Elucidation of the mechanisms of optical clearing in collagen tissue with multiphoton imaging,” J. Biomed. Opt. 18(4), 046004 (2013); doi: Hovhannisyan et al.

[5.] , “Principal wavelengths in the formation of spectral images of natural scenes,” J. Biomed. Opt. 18(4), 046005 (2013); doi: Sanchez-Marin

[6.] , “Detection of an unstable and/or a weak probe contact in a multichannel functional near-infrared spectroscopy measurement,” J. Biomed. Opt. 18(4), 047003 (2013); doi: Umeyama and Yamada

[7.] , “Concurrent multiscale imaging with magnetic resonance imaging and optical coherence tomography,” J. Biomed. Opt. 18(4), 046015 (2013); doi: Liang et al.