1. Why do people bleed?;Ratnoff,1980
2. Some considerations with respect to the blood founded on one or two very simple experiments on that fluid;Babington;Med Chir Trans,1830
3. Gesammette Abdhandlungen zur Wissenschaftlischen Medicin;Virchow,1856
4. Zur Blutlehre;Schmidt,1892
5. The chemistry of blood coagulation;Morawitz;Ergeb Physiol,1905