create an ERD data model based on this business rule

3-2 Physicians who work at a medical center see many patients. The center keeps each physician's personal information including id number, title, first name, and last name. The center also keeps each patent's id and her first and last name. Each patient may be seen by more than one physician, although on different appointments During an appointment with a physician, which occurs on a particular date and time, a patient may be diagnosed with one or more illnesses associated with the degree of each illness. An illness has its unique medical name and common name that can be diagnosed in different appointments for different patients