Morrison, M. , Richter, I.H. AND Loewe, L.: Increased blood platelet clumping im thromboembolic disease. Am. J. Clin. Path., 18: 879, 1948.
2.
Waugh, T.R. AND Ruddick, D.W.: A test for increased coagulability of the blood. Canad. M. A. J., 50: 547, 1944.
3.
Waugh, T.R. AND Ruddick, D.W.: Studies in increased coagulability of the blood. Canad. M. A. J., 51: 11, 1944.
4.
Hirschboeck, J.S.: The blood coagulation-retraction time and its relation to thrombosis. J. Lab. and Clin. Med., 32: 1424, 1947.
5.
Hirschboeck, J.S. AND Coffeen, W.L.: Clot retraction time in thrombophlebitis and pulmonary embolism. Am. J. Med. Sc., 205: 727, 1945 .
6.
Quick, A.J.: Determination of prothrombin. Proc. Soc. Exp. Biol. & Med., 42: 788, 1939.
7.
Barker, N.W. , Nygaard, K.K., Walters, W. AND Priestly, J.T.: A statistical study of postoperative venous thrombosis and pulmonary embolism. Proc. Staff Meet. Mayo Clin., 16: 1, 1941.
8.
Wright, I.S. , Marple, C.D. AND Beck, D.F.: Report of the committee for the evaluation of anticoagulants in the treatment of coronary thrombosis with myocardial in-infarction. Am. Ht. J., 36: 801, 1948.
9.
Burke, M.: Thrombosis, a medical problem. Am. J. Med. Sc., 196: 769, 1938.
10.
Veal, J.R. AND Hussey, H.H.: Surgery of the deep venous thrombosis of the lower extremity. Surgery, 17: 218, 1945.
Stich, J.: Annual session of the German Surgical Society. J. A. M. A. , 105: 525, 1935.
13.
Allen, A., Linton, R.R. AND Donaldson, G.A.: Thrombosis and embolism, review of 202 patients treated by femoral vein interruption . Ann. Surg., 118: 728, 1943 .
14.
Cook, A.W. AND Lyons, H.A.: Venous thromboembolic phenomena, their absence in paraplegic and tetraplegic patients. Am. J. Med. Sc., 218: 155, 1949.
15.
Sproul, E.E. : Carcinoma and venous thrombosis. Am. J. Cancer, 34: 566, 1938.
Kenney, W.E. : The association of carcinoma in the body and tail of the pancreas with multiple venous thrombi. Surg., 14: 600, 1943.
18.
Hunter, W.C. , Sneeden, V.D., Thomas , D. AND Snyder, G.A.C.: Thrombosis of the deep veins of the legs . Arch. Int. Med., 68: 1, 1941.
19.
Hunter, W.C. , Krygier, J.J., Kennedy , C.T. AND Sneeden, V.D.: Etiology and prevention of thrombosis of the deep leg veins. Surgery , 17: 178, 1945.
20.
RossLE, R.: Uber die bedeutung und die entstehung der wadenvenenthrombosen. Virchow's Arch. f. Path. Anat., 300: 180, 1937.
21.
Putzer, R.: Die wadenvenenthrombosen in ihrer beziehung zur architectur der wade . Arch. f. Gynah., 169: 444, 1939.
22.
Hueck: Blutplattchenveranderungen nach operationen. Muncher. Med. Wchnschr., 73: 173, 1926.
23.
Willensky, B.: Changes in the blood platelets after operations and injuries. Lancet, 1: 1126, 1930.
24.
Dawborn, R.Y. , Earlam, F. AND Evans, W.H.: The relation of the blood platelets to thrombosis after operation and parturition. J. Path. and Bact. , 31: 1833, 1928.
Potts, W.J. AND Pearl, E.: A study of the platelet count and the coagulation time of plasma and whole blood following operation. Surg. Gyn. & Obs., 73: 492, 1941.
27.
Shapiro, S. , Sherwin, B. AND Gardimer, H.: Postoperative thromboembolism. Ann. Surg., 116: 175, 1942 .
28.
Wright, H.P. : Changes in the adhesiveness of blood platelets following parturition and surgical operations. J. Path. & Bact., 54: 461, 1942.
29.
Moolten, S.E. , Vroman, L. AND Vroman, G.M.S.: Adhesiveness of blood platelets in thromboembolism and hemorrhagic disorders. Am. J. Clin. Path., 19: 814, 1949.
30.
Øllgaard, E. : On the agglutination of the blood platelets under normal and pathological conditions. Acta. Med. Scand. , 115: 1, 1943.
31.
Weiner, M., Zeltmacher, K., Reich, C. AND Shapiro, S.: Platelet adhesiveness. Blood, 3: 1275, 1948.
32.
Pinnigfr, J.L. AND Prunty, F.T.G.: Some observations on the blood clotting mechanism. The role of fibrinogen and platelets. Brit. J. Exp. Path., 27: 200, 1946.
33.
Solandt, D.Y. AND Best, C.H.: Time relations of heparin action on blood clotting and platelet agglutination. Lancet, 238: 1042, 1940.
34.
Zucker, M.D. : Platelet agglutination and vasoconstriction as factors in spontaneous hemostasis in normal, thrombocytopenic, heparinized, and hypoprothrombinemic rats. Am. J. Physiol., 148: 275, 1947.
35.
Quick, A.J.: Studies on the enigma of the hemostatic dysfunction of hemophilia . Am. J. Med. Sc., 214: 272, 1947.
36.
Ware, A.G., Fahey, J.L. AND Seegers, W.H.: Platelet extracts, fibrin formation, and interaction of purified prothrombin and thromboplastin. Am. J. Physiol., 154: 140, 1948 .
37.
Seegers, W.H. , Warner, E.D., Brinkhous , K.M. AND Smith, H.D.: Heparin and the antithrombic activity of plasma. Science, 96: 300, 1942.
38.
Seegers, W.H. AND Ware, A.G.: Protein equilibrium reactions in the blood clotting mechanism. Trans. of Josiah Macy Found. , Feb. 1948, p. 81.
39.
Ziff, M. AND Chargaff, E.: Studies on chemistry of blood coagulation. J. Biol. Chem. , 136: 689, 1940.
40.
Holden, W.D. , Coll, J.W. AND Davis, J.H.: Clinical studies of the heparin cofactor . Surg., Gyn. and Obs., 89: 20, 1949.
Howell, W.H. : The condition of the blood in hemophilia, thrombosis and purpura. Arch. Int. Med., 13: 76, 1914.
43.
Volkert, M. : Heparin content of the blood in experimental thrombosis. Acta Chir. Scand., 89: 379, 1943.
44.
Hurn, M., Barker, N.W. AND Mann, F.: Variations in prothrombin and antithrombin in patients with thrombosing tendencies . Am. J. Clin. Path., 17: 709, 1947.
45.
Volkert, M. AND Piper, J.: Heparin content of the blood in clinical thrombosis. Acta. Chir. Scand., 89: 417, 1943.
Hagedorn, A.B. AND Barker, N.W.: Coagulation time of blood heparinized in vitro. J. Lab. and Clin. Med., 32: 1087, 1947 .
48.
Hagedorn, A.B. AND Barker, N.W.: Response of persons with and without intravascular thrombosis to a heparin tolerance test. Am. Ht. Journal, 35: 603, 1948.
49.
Tuft, H.S. AND Rosenfield, R.E. : Detection of intravascular clotting tendency by heparin tolerance principle. Am. J. Clin. Path., 17: 862, 1947.
50.
Ogura, J.H. , Fetter, N.R., Blankenhorn , M.A. AND Glueck, H.I.: Changes in blood coagulation following coronary thrombosis measured by the heparin retarded clotting test. J. Clin. Inv., 25: 586,1946.
51.
Kravechick, D.I. AND Scheiman, L.: Evaluation of an in vitro heparin tolerance test for thromboembolic disease. J. Lab. and Clin. Med., 34: 1222, 1949.
52.
Fowler, N.O. : A study of certain aspects of blood coagulation in the postoperative state in congestive heart failure and in thrombophlebitis . J. Clin. Inv., 28: 671, 1949.
53.
Warner, B.D. , Brinkhous, K.M. AND Smith, H.D.: A quantitative study on blood clotting: prothrombin fluctuations under experimental conditions . Am. J. Physiol., 114: 667, 1936.
54.
Seegers, W.H. : A factor in plasma which accelerates the activation of prothrombin. J. Biol. Chem., 169: 231, 1947 .
55.
Fantl, P. AND Nance, M.: Aceeleration of thrombin formation by a plasma component. Nature, 158: 708, 1946.
56.
De Vries, A.B. , Goldstein, R. AND Landwehr, G.: A prothrombin conversion accelerator in serum . Science, 109: 545, 1949.
57.
Owren, P.A. : Coagulation of blood; investigations on new clotting factor. Octa. Med. Scand., Suppl. #194, 1947.
58.
Brambel, C.B. AND Loker, F.F.: Significance of variations of prothrombin activity of dilute plasma. Proc. Soc. Exp. Bio. Med., 53: 45, 1943.
59.
Shapiro, S. AND Sherwin, B.: Studies in thromboembolization. N. Y. StateMed. J. , 43: 45, 1943.
60.
Shapiro, S., Sherwin, B., Redish, M. AND Campbell, H.A.: Prothrombin estimation: a procedure and clinical interpretations. Proc. Soc. for Exp. Bio. &Med., 50: 85, 1942.
61.
Shapiro, S.: Hyperprothrombinemia, a premonitory sign of thromboembolization. Exp. Med. & Surg., 2: 103, 1944.
62.
Peters, A.R. , Guyther, R.J. AND Brambel, C.E.: Dicumarol in acute coronary thrombosis . J. A. M. A., 130: 398, 1946.
63.
Sandrock, R.S. AND Mahoney, E.B.: Prothrombin activity, a diagnostic test for early postoperative venous thrombosis. Ann. Surg. , 128: 521, 1948.
64.
Cotlove, B. AND Vorzimfr, J.J.: Serial prothrombin estimations in cardiac patients. Ann. Int. Med., 24: 648, 1946.
65.
Tuft, H.S. AND Rosenfield, R.B. : Significance of the accelerated reaction in determination of prothrombin time of diluted plasma. Am. J. Clin. Path., 17: 704, 1947.
66.
McCLURE, R. D., Lam, C.R., Barron, J. AND Margules, R.R.: Clinical evaluation of two tests for incipient thrombosis. Ann. Surg. , 130: 439, 1949.
67.
Olwin, J.H. : Blood clotting and allied problems. Tr. of Proc. of Macy Found., Feb., 1948, p. 109.
68.
Cotlove, E. , Spiro, D. AND Vorzimer, J.J.: Serial determinations of prothrombin activity in pregnancy and the puerperium. Am. J. Med. Sc., 218: 28, 1949.
69.
Hirschboeck, J.S. AND Coffee, W.L.: The clot retraction time in thrombophlebitis and pulmonary embolism. Proc. Central Soc. forClin. Res. , 14: 11, 1941.
70.
Seegers, W.H. : Multiple protein interactions as exhibited by the blood clotting mechanism. J. Phys. and Colloid Chem. , 51: 198, 1947.
71.
Quick, A.J. AND Favre-Gelly, J.E.: Fibrin, a factor influencing the consumption of prothrombin in coagulation. Am. J. Physiol. , 158: 387, 1949.
72.
Cummine, H. AND Lyons, R.N.: A study in intravascular thrombosis with some new conceptions of the mechanism of coagulation. Brit. J. Surg., 35: 337, 1948.
73.
Lyons, R.N. : Thiol-vitamin K mechanism in the clotting of fibrinogen. Aust. J. Biol. and Med. Sc., 23: 131, 1945.
74.
Berquist, G. : Changes in blood in connection with thromboembolism . Acta Chir. Seand., 92 Supp. 101, 1945.
75.
Jacques, C.B. : Silicones in blood coagulation. Canad. M. A. J., 55: 26, 1946.
76.
Kadish, A.: Coagulation of the blood in lusteroid tubes. Am. Ht. J., 34: 212, 1947.
