ERD Relationships

Doctor ​ (a)   ​ (b)   ​ Appointment

• C
• E
• A
• B
• D
• F
• G
• H

Appointment ​ (a)   ​ ​ (b)   ​ Bill

• C
• G
• A
• B
• D
• F
• H
• E

Payment ​ ​ (a)   ​ ​ (b)   ​ Bill

• A
• G
• B
• D
• F
• H
• E
• C

Patient ​ ​ (a)   ​ ​ (b)   ​ Payment

• C
• E
• B
• D
• F
• H
• A
• G

Patient ​ ​ (a)   ​ ​ (b)   ​ Insurance Company

• D
• F
• B
• H
• A
• C
• E
• G

Insurance Company ​ ​ (a)   ​ ​ (b)   ​ Payment

• C
• F
• B
• H
• A
• D
• E
• G