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.
Prolotherapy was first used by Dr. George S. Hackett, and it was introduced to the AMA (American Medical Association) in 1955. It has been used mostly on the west coast of United States and now itâs moving very steadily towards the East Coast. Itâs been progressing over the last 60 or 70 years.