what is the highest paying job in north dakota?
['General Internal Medicine Physicians.', 'Obstetricians and Gynecologists.', 'Pediatricians, General.', 'Physicians, All Other; and Ophthalmologists, Except Pediatric.', 'Dentists, General.', 'Nurse Anesthetists.', 'Optometrists.', 'Chief Executives.']