E2.2l Additional requirement

* Each doctor works at between two and four outpatient locations, and each outpatient location has between three and ten doctors working at it

E2.3 Create the ER diagram based on the following requirements:

• A health care organization keeps track of its doctors.
• For each doctor it keeps track of the DoctorID (unique), DoctorName, and DoctorYearOfMDGraduation (year of graduating from medical school).
• A doctor can be a resident for either one or none of the faculty doctors. A doctor can have many resident doctors, but does not have to have any.