Metwally, M. , El-Gohary, S. , Byun, K. , Han, S. , Lee, S. , Cho, M. , Khang, G. , Cho, J. , Kim, T.. "Influence of Optical Fluence Distribution on Photoacoustic Imaging". World Academy of Science, Engineering and Technology, Open Science Index 92, International Journal of Biomedical and Biological Engineering, (2014), 8(8), 1108 - 1112.