title: A special section on selected papers from the 4th Hamlyn Symposium on Medical Robotics, 2011.
authors.affiliation: The Hamlyn Centre, Imperial College London, London, UK. g.z.yang@imperial.ac.uk.
authors.forename: Guang-Zhong
authors.initials: GZ
authors.lastname: Yang
authors.affiliation: The Hamlyn Centre, Imperial College London, London, UK.
authors.forename: Ara
authors.initials: A
authors.lastname: Darzi