Ayd›n Karaarslan

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The frequency of resistance to erythromycin of group A beta-haemolytic streptococci in the last 7 years was determined in three medical centres in Ankara. While all group A beta-haemolytic streptococci strains were susceptible to penicillin, a gradual increase in resistance to erythromycin until 1992 was observed. However, a substantial increase in(More)
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