The Largest division in the geological time scale is the Precambrian Era.It lasted from around 4.6 billion years ago to 570 million years ago.
To become a Plastic Surgeon, one must complete a residency program in General Surgery. Dr. Jon Trevisani completed his General Surgery Residency Program at University of Kansas Medical Center in Kansas City, Kansas. The General Surgery Residency Program is 5 years which he becomes a General Surgeon. To enter the field of Plastic Surgery requires special training in called a Fellowship Training and/or advanced training Plastic and Reconstructive Surgery Residency Program which is 2 years.
Third you must do a general surgery residency - 5 years. Fourth you must do a pediatric surgery fellowship - 2 years. Total - 15 years. some people have to do some research during their general surgery residency in order to apply for a pediatric surgery fellowship...may be 1-2 years more.hird you must do a general surgery residency - 5 years. Fourth you must do a pediatric surgery fellowship - 2 years. Total - 15 years. some people have to do some research during their general surgery residency in order to apply for a pediatric surgery fellowship...may be 1-2 years more.