A voucher is a bond of the redeemable transaction type which is worth a certain monetary value and which may be spent only for specific reasons or on specific goods.
In 1985 a robot, the Unimation Puma 200, was used to place a needle for a brain biopsy using CT guidance. In 1992, the PROBOT, developed at Imperial College London, was used to perform prostatic surgery by Dr. Senthil Nathan at Guy's and St Thomas' Hospital, London. This was the first pure robotic surgery in the world.
Modern Plastic Surgery. The modern history of plastic surgery really started to take shape in the 1960s and the 1970s. Plastic surgeons were moving to the forefront of the medical establishment, including one plastic surgeon who was appointed Surgeon General in 1969, and another who won a Nobel Prize.