After students have completed undergraduate studies, there are two main degree paths for prospective medical scientists: either a Ph.D. or a joint M.D.-Ph.D. Students can enroll in a university Ph.D. program in the biological sciences, which typically take about 6 years of study. Ph.D. students specialize in one particular field, such as genetics, pathology, or bioinformatics. For a joint M.D.-Ph.D. program, students enroll at a medical college that typically takes 7 to 8 years of study. Students learn both the clinical skills needed to be a physician and the research skills needed to be a scientist.
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Graduate programs place additional emphasis on laboratory work and original research. These programs offer prospective medical scientists the opportunity to develop their experiments and, sometimes, to supervise undergraduates. A Ph.D. culminates in a thesis, which the candidate presents before a committee of professors.
Those who go to medical school spend most of the first 2 years in labs and classrooms, taking courses such as anatomy, biochemistry, physiology, pharmacology, psychology, microbiology, pathology, medical ethics, and medical law. They also learn to take medical histories, examine patients, and diagnose illnesses. For more information, see the profile on physicians and surgeons.
Medical scientists often continue their education with postdoctoral work at universities or with federal agencies, such as the National Institutes of Health. Postdoctoral work provides valuable lab experience, including in specific processes and techniques such as gene splicing, which is transferable to other research projects. In some institutions, the postdoctoral position leads to a permanent job.
Medical scientists who administer drug or gene therapy to human patients, or who otherwise interact medically with patients—drawing blood, excising tissue, or performing other invasive procedures—must be licensed physicians. To be licensed, physicians must graduate from an accredited medical school, pass a licensing examination, and complete 1 to 7 years of graduate medical education.
Source: Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2012-13 Edition