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Entities, attributes and PK: Relationship: Referential Integrity

Entities, attributes and PK:

Relationship:

Referential Integrity Constraints:

SS11 age name address phy_ssn name Patient Pri_physician Doctor name address phone_num start_date end_date text supervisor Prescription Pharmacy Sell Drug Contact price Make Pharm_co speciality date quantity exp_years trade name formula name (phone_num

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