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. 2014 Oct 21;14(10):19660–19668. doi: 10.3390/s141019660

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© 2014 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).

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Figure 1. — Experimental setups of a dual modal photoacoustic (a) and fluorescence (b) imaging system. AMP, Amplifier; OSC, oscilloscope; OPO, optical parametric oscillator; CNL, conical lens; CCL, concave lens; OC, optical condenser; UT, ultrasound transducer; WT, water tank; and UG, ultrasound gel.