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. 2012 Mar 15;3(4):735–740. doi: 10.1364/BOE.3.000735

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©2012 Optical Society of America

This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported License, which permits download and redistribution, provided that the original work is properly cited. This license restricts the article from being modified or used commercially.

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Fig. 4 — (a) Light micrograph. Differentiating between the HEWL crystal and the calcium phosphate crystal is difficult. (b) Cross section of a three-dimensional UHR-OCT image. The red arrow points the calcium phosphate crystal and the blue arrow points the HEWL crystal. The difference in the signal intensities provides a better means of differentiating between the HEWL crystal and the calcium phosphate crystal. Media 3^{(3.8MB, MOV)} shows the 3D UHR-OCT image of HEWL crystals and the calcium phosphate crystal.