[Aggregation of blood platelets: changes in Breddin's method (author's transl)].

The evaluation of the blood platelets aggregation, by means of Breddin's method, is rather long and, moreover, the subjective elements connected with the microscopist's experience, fall on it. The AA. have verified, through sixty cases, a great correlation between this method and change prepared by them, whied avoids the inconveniences before mentioned.