RT Journal T1 BErlin JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1929 FD October 26 VO 93 IS 17 SP 1324 OP 1325 DO 10.1001/jama.1929.02710170056021 UL http://dx.doi.org/10.1001/jama.1929.02710170056021 AB Pathogenesis and Clinical Aspects of Thrombosis and Embolism  At a recent session of the Leipziger medizinische Gesellschaft, thrombosis and embolism were discussed at considerable length. According to a comprehensive report in the Deutsche medizinische Wochenschrift, Professor Hueck, director of the Leipzig Pathologic Institute, considered first the anatomic aspects of the pathogenesis of spontaneous thrombosis and embolism. The accepted results that anatomic research has attained thus far have to do with the composition and structure of the thrombi, and also with the observations of the dissecting room concerning the frequency of thrombosis in association with various diseases, the seat of the thromboses, and their distribution with respect to age and sex. The claim is contested, and the question will doubtless not be settled for some time as to whether or not a knowledge of these facts will justify a conclusion as to the causal factors of thrombosis and embolism. It is