Here are entered works on the classification of hospital patients into groups on the basis of principal diagnosis and other criteria for reimbursement purposes.
Here are entered works on testing the effectiveness or safety of drugs. Works on testing to identify the personal use or misuse of drugs are entered under Drug testing. Technical works on chemical analysis to determine the composition or presence of drugs are entered under Drugs--Analysis. --subdivision Testing under individual drugs and groups of drugs; and subdivision Therapeutic use--Testing under individual chemicals and groups of chemicals, e.g. Copper--Therapeutic use--Testing; Insulin--Therapeutic use--Testing
--subdivision Environmental aspects under individual diseases and types of diseases, e.g. Cancer--Environmental aspects; Heart--Diseases--Environmental aspects
--subdivision Genetic aspects under individual diseases and types of diseases, e.g. Cancer--Genetic aspects; and subdivision Diseases--Genetic aspects under individual organs and regions of the body, e.g. Heart--Diseases--Genetic aspects
--subdivision Magnetic resonance imaging under individual diseases and types of diseases and organs and regions of the body, e.g. Cancer--Magnetic resonance imaging; Heart--Magnetic resonance imaging
