1 World Federation of Neurosurgical Societies, Nyon, Switzerland; Nanotechnology and Smart Systems, NASA Ames Research Center, Moffett Field, California, USA. Electronic address: rja@russelljandrews.org.
2 World Federation of Neurosurgical Societies, Nyon, Switzerland; Emergency and Essential Surgical Care Programme, World Health Organization, Geneva, Switzerland.
3 World Federation of Neurosurgical Societies, Nyon, Switzerland; Program in Global Surgery and Social Change, Harvard Medical School, Boston, Massachusetts, USA.
4 BARC Hospital, Homi Bhabha National Institute University, Mumbai, India.