No significant difference in terms of clinical outcome was observed when using fresh, rather than cryopreserved homografts. The only factor that significantly influenced the survival rate appeared to be the aorto-enteric fistula.
The relative advantages of different procedures in treating varicose veins were assessed in a study of the late results in 416 patients. More than half were followed up for 7 to 14 years. Although the location and severity of the varicosities influenced the choice of pro-
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