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Multiple hospital systems and the teaching hospital.

A substantial portion of hospital beds are in institutions that are in multiple hospital systems having varying degrees of formal linkage. Relatively few core teaching hospitals are part of such systems, but they do share strong relationships with their parent medical schools and affiliated hospitals. The missions of core teaching hospitals are patient care, education, and research. The traditional affiliation arrangement between hospitals permits the parent university to achieve these missions. The possible benefits to be gained through participation in a multiple hospital system do not appear to be of sufficient magnitude to either core teaching hospitals or their parent universities to persuade them to join or form such a system.