Medicine
A career in medicine is still a different story.
After three to four years in college premedical study, four years in medical school, at least one year of internship, and possibly a year’s medical residency, a doctor can become a general practitioner. If he wishes to specialize, his internship may last for two years, and his residency period from three to four years. It is this latter, longer path that leads to a career in nuclear medicine and radiology, as well as to more familiar specialization, such as surgery, pathology, obstetrics, or pediatrics.