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. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Photochem Photobiol. 2012 Jun 6;88(5):1273–1279. doi: 10.1111/j.1751-1097.2012.01171.x

Figure 4.

Figure 4

Photobleaching of Pc 4 fluorescence measured in vivo during delivery of 667 nm treatment light at 50 mW/cm2. Open circles represent the fit coefficient of the Pc 4 basis obtained from SVD fitting, normalized to the magnitude at the beginning of PDT. The solid line corresponds to a single exponential fit to the measured photobleaching, as shown in Equation (1).