The duties of Employee under this Agreement shall include the application by Employee of Employee's particular skill and knowledge in medicine and in the Specialty principally in hospitals, clinics, offices or other healthcare facilities in the Greensboro, North Carolina Metropolitan area (the "Geographic Area") or outside the Geographic Area in such facilities that Employer determines serves the best interest of Employer, and such duties shall be performed in accordance with such rules and regulations as may be from time to time prescribed by Employer. Employee will devote Employee's best efforts to promotion of the goodwill of Employer, as hereinafter defined, and all physicians employed by Employer.