[Zhao, Yunjie] Cent China Normal Univ, Inst Biophys, Wuhan 430079, Peoples R China.
[Zhao, Yunjie] Cent China Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.
[Li, Zhangyong; Wang, Lu; Zeng, Chen] Chongqing Univ Posts & Telecommun, Res Ctr Biomed Engn, Chongqing 400065, Peoples R China.
[Liu, Zhichao; Jian, Yiren; Zeng, Chen; Zhao, Yunjie] George Washington Univ, Dept Phys, Washington, DC 20052 USA.
[Liu, Hang; Huang, H. Howie] George Washington Univ, Dept Elect & Comp Engn, Washington, DC 20052 USA.