Thrombosis and Haemostasis, Table of Contents Thromb Haemost 1975; 33(02): 393-394DOI: 10.1055/s-0038-1647896 Letter to the Editor Schattauer GmbH Procedure for the Determination of Heparin E. T Yin 1 The Jewish Hospital of St. Louis, St. Louis, Missouri › Author Affiliations Recommend Article Abstract Buy Article Full Text