1. Division of Imaging and Technology; University of Dundee, Ninewells Hospital and Medical School; James Arrott Drive Dundee UK DD1 9SY
2. Optoelectronics and Biomedical Photonics Group, Aston Institute of Photonic Technologies; Aston University; Aston Triangle Birmingham UK B4 7ET
3. Biomedical Photonics Instrumentation Group, Scientific-Educational Centre of “Biomedical Engineering”; Orel State University; Orel Russia 302020
4. SUPA, School of Science and Engineering, Ewing Building; University of Dundee; Nethergate Dundee UK DD1 4HN