They become professors if they are higher than a 'surgeon'
A group of veterinary surgeons is called a College of veterinary surgeons. If you have many groups of veterinary surgeons, they are Colleges.
Level 1 surgeons are privates, up to level 80 surgeons who are commanders.
orthopedic surgeons they make up to 600,000-1,000,000 a year
gastroenterologists
They can be called an OR nurse or circulator.
scalpel
Because before there were surgeons the job had been done by barbers, who were not medically trained.
Scrubs
Surgeons who grew up playing video games make 37% fewer mistakes.
They don't. Barbers make as low as $35,000 and Surgeons can make up to $350,000.
There is no such thing as a "cancer surgeon". There are general surgeons and specialty surgeons (thoracic, abdominal, etc.) All of them deal with cancer. All of them operate for many other reasons than cancer. A good surgeon makes anywhere from $200,000 to $300,000 a year, higher for the specialists, lower for the general surgeons.
An EKG