Έγγραφο1 - University of Ioannina · Received July 20, 1992. Revised September 11, 1992. Ac-...
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Έγγραφο1 - University of Ioannina · Received July 20, 1992. Revised September 11, 1992. Ac- cepted October 10, 1992. From the Department of Internal Medicine, Medical School,