Quant Imaging Med Surg 2015 Feb;5(1):9-16
1 Electrical Systems and Optics Research Division, Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD, UK ; 2 Department of Electrical Engineering, California Institute of Technology, 1200 E California Boulevard, Pasadena, California 91125, USA ; 3 Institute of Biophysics, Imaging and Optical Sciences, University of Nottingham, UK.