Efforts to perfect a recently dis covered substance which prevents blood-clotting after arterial operations, are nearing success at University of Toronto, Dr. D. A. Scott, senior research chemist in the Con- naught Laboratories, told The Star yesterday.
First obtained from the liver this substance, called heparin, can now be obtained from the beef lung in much greater quantities, but its chemical constituents are still unknown. Dr. Scott said. The new substance has been clinically applied, but is still in the experimental stage, he stated.
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