AUTHOR=Schmaier Alvin H. , Meijers Joost C. M. TITLE=Editorial: Introduction to the Presentations at the Factor XI and the Contact System SSC Session of the ISTH, Montpellier, France, May 27, 2016 JOURNAL=Frontiers in Medicine VOLUME=4 YEAR=2017 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2017.00140 DOI=10.3389/fmed.2017.00140 ISSN=2296-858X