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.
During their fifth clinical year, general surgery residents rotate for eight or nine months at The Johns Hopkins Hospital and for two to three months at Johns Hopkins Bayview Medical Center. Rotations include additional training in trauma surgery, complex hepato-pancreatico-biliary surgery, surgical oncology and complex laparoscopic surgery. Operative Experience. In recent years, our general surgery residents have performed approximately 1,000 operations at the end of five clinical years.