Circulation. 124(14):e365–e368, OCTOBER 4TH, 2011 DOI: 10.1161/CIRCULATIONAHA.111.044412 , PMID: 21969320 Issn Print: 0009-7322 Publication Date: October 4th, 2011 Print Deficiencies of Natural Anticoagulants, Protein C, Protein S, and Antithrombin Brea Lipe;Deborah Ornstein; + Author Information From Hematology/Oncology (B.L.) and Hemophilia and Thrombosis Center (D.L.O.), Dartmouth-Hitchcock Medical Center, Lebanon, NH; Departments of Medicine and Pathology, Dartmouth Medical School, Hanover, NH (D.L.O.). Checking for direct PDF access through Ovid Abstract Abstract unavailable for this article.