1. Department of Mechanical and Mechatronics Engineering, The University of Auckland, Auckland, New Zealand.
2. The Medical Technologies Centre of Research Excellence, Auckland, New Zealand.
3. Riddet Institute, Palmerston North, New Zealand.
4. Department of Electrical and Electronic Engineering, Auckland University of Technology, Auckland, New Zealand.
5. Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand.