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Oversupply of Screening Mammography Units: Why Should Internists Care?

Alvin I. Mushlin, MD, ScM
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University of Rochester Medical Center
Rochester, NY 14642

Ann Intern Med. 1990;113(7):489-490. doi:10.7326/0003-4819-113-7-489
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Fundamental to the efficiency of a free enterprise system is the notion that supply should rise only to the extent justified by the demand for goods and services. Some segments of our system, however, do not abide by the rules of the marketplace and require other means to guarantee that a reasonable balance exists. Medical care is such an exception. For example, because medical care is, to an important extent, paid for by third parties and not directly by individual patients, consumers are less concerned about cost. Further, patients are usually not in a position, by themselves, to determine the


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